超声检测ut试卷及答案分享-新全讯2网

通识课习题 0158

一国地方持有的外汇也属于外汇储备( )

在全球国际储备中,比重最大的是外汇储备( )

在现行国际货币体系中,一国货币充当储备货币时出现的清偿力与信心之间的矛盾被称为特里芬难题( )

2014年10月13日,银行与俄罗斯银行签订双边本币互换协议,协议标的为1500亿元币/8150亿俄罗斯卢布。2014年12月,俄罗斯卢布大幅下跌,与协议签订时相比,跌幅超过17%。这意味着的损失也超过17%( )

边际进口倾向越大,国际收支调整速度就会较快,国际储备需求较小( )

拇指法则也称作经验法则,它泛指测度国际储备适度规模的一些简便易行的方法。这些方法包括 ( )

在国际储备的结构管理中,流动性与营利性成反比( )

国际收支顺差是外汇储备高速增长的结构原因( )

2015年8月以来,外汇市场存在着币汇率贬值预期,根据预期的自我实现原理,币汇率会出现贬值( )

2007年,为了缓解我国外汇储备高速增长的压力,在学习借鉴全球财富基金的运作经验的基础上,我国成立了中司或投资有限责任公司( )

on the accomplishment of csc assignment, employees hone their cultural and __________ literacy.

the csc idea is to instill _____________ and leadership skills for less-structured, erse business environment and cultures.

csc represents not only cutting-edge career training, but also a major advance in the practice of ___________.

corporate social responsibility is no longer viewed as __________________, but an investment that brings financial returns.

the alignment of charitable giving with business strategy, company skills and market needs is called ____________.

one example of companies building a growth platform through the practice of csr is ______________.

pro bono is a latin phrase for __________ undertaken voluntarily and without payment.

the potential drawback of this investment __________ is that it is exclusive in the u.s. when many believe international ersification is helpful.

__________ is the process of designing, launching and running a new business, which is often initially a all business.

trust is the foundation of the bbc ________; we are independent, impartial and honest.

code of conduct is a set of rules outlining the social norms, religious rules and responsibilities of, and or proper practices for, an inidual. in chinese, code of conduct is _________.

participants in ibm's csc assignment are all teams of excellent employees to help communities worldwide address challenges.

csc assignment's initial aim was to develop the skills and experience to succeed as new global leaders.

the statement “in the past, business was only responsible to shareholders” means companies are set up to fulfill investors' business and societal plans.

values-based regulation must be placed ahead of legal compliance when companies integrate csr into core business strategy.

if you're looking to boost customer satisfaction, one of the most promising places to start is____________.

it is believed that increased satisfaction has a (an) ____impact on consumer spending, cash flow, and business performance.

problems with service had a much______ than problems with the products themselves on customers’ likelihood to recommend a brand.

customer service calls involve direct interaction between ______.

one possibility she is seriously considering is to introduce a line of sorbets based on exotic fruits like kiwi and mango and that use low-calorie sweeteners. what does the underlined word "exotic" probably mean?

the stakes are high. what does the underlined word " stakes " probably mean?

overall, ice cream sales in the u.s.have declined 1 to 2 percent in recent years, except for haagen-dazs and a few other super premium producers.

the decline in sales growth of super premium ice cream in the u.s. since the early 1990s is due to competition among ice cream producers.

frozen yogurt sales have declined rapidly for a long time because many people didn’t like the tart taste.

“dessert junkies” are those people with yearning for low-fat frozen yogurt and low-fat ice cream.

the retail price of haagen-dazs is quite high when compared with other premium ice cream.

many consumers believe that low fat mean low calorie.

as people notice consistent quality differences, customers’ attitudes improve or deteriorate quite quickly.

americans nowadays prefer low-fat ice creams rather than rich taste ice cream.

the price in an export sales contract should be quoted in __________ .

the term “______ exports of goods” means the trade value of exports which “have been adjusted for price changes".

normally, a typical ____________ follows the pattern of prosperity, recession, depression, and recovery.

“制造业是主要的受益者。” the underlined expression “受益者” is ________ in english.

securities are stocks, shares, bonds, or other certificates that you buy in order to earn regular interest from them or to sell them later for a profit. the chinese version for “securities” is _________.

the year 1978 ________ the reform and opening-up in china.

the global credit markets see little risk in lending, suggesting a climate that will accommodate borrowing. "accommodate" here means _________.

international trade is the exchange of goods and merchandise across international boundaries or territories.

few nations of the world have the raw materials, climate, technology, and skilled labor needed to produce all the goods and services they may desire.

attention to exports outweighs that to imports in america.

devaluation of the us dollar makes the prices of foreign currencies and products less expensive to americans.

the three pillars of u.s. economic growth this year have been housing construction, business outlays for new buildings and equipment, and exports.

according to the case-study reading, the strong growth in economies overseas is not driven by their exports to america but by their own domestic demand.

and the timing is especially favorable when the u.s. exporters can use the extra support of globalization.

european countries together with japan account for about half of all u.s. exports.

you shouldn't the exercise equipment while others are waiting to use it.

the museum is annually by funds from several major corporations.

when parents of marginalized, poor students try to around the harsh rules and requirements, they are often investigated, tried, and punished with strict prejudice.

the economy slumped, nascar struggled to find ways to keep its long races interesting, and some of the sport's more stars began moving to the sidelines.

the proposal to establish a joint venture was accepted with ______ approval.

if you pay by credit card, you have to _____ the transaction by signing a pay slip.

when an employee is aware that his expertise and experiences are appreciated by his company and his fellow workers, he is able to _____ even more closely with the company.

the yen _______ yesterday, falling from $114 to $115 against the dollar.

the exporter didn't receive payment for his goods because the buyer ______.

凭借先进的生产技术,他们得以占据竞争优势。the underlined phrase “竞争优势” is ________ in english.

choice and migration of position have reflected enterprise's dynamic resource distribution idea and the goal of maximized value in long-term. in chinese, resource distribution is _________.

monopoly means that a monopolistic activity or right that is concentrated in a certain sphere.

the monopolies in area of energy are benign, and so it's unnecessary for the government to eliminate them.

the mistake of ibm, a compe of microsoft, was that it licensed at “microsoft” the primitive operating system and did not stipulate for own exclusive rights.

the most obvious solution to monopoly would be the diemberment.

if a company continues to support fully funded pension plans, which category will it likely fall into?

soft returns delivered by an effective benefits program include a sense of meeting obligations and goodwill and ?

which statements best describes the company that spends more money to fund its benefits programs than its compes?

employee benefits represent an investment from which companies derive value, and it should be managed in line with an overall business strategy rather than written off as an .

a (an) is a fixed or variable sum of that a company pays to its sales force, in an attempt to motivate personnel and spur revenues.

survey participants their approach to employee benefits into one of four profiles.

长期不遗余力地致力于全额资助退休金计划的企业很可能属于这个种类。 the underlined phrase “退休金计划” is ________ in english.

to create a benefits package that delivers soft and hard returns to employees, a corporate requires a paradigm shift in such areas as .

the ways that employers can use to address the financial security of employees include .

employees that place a heavy emphasis on the and of their benefits programs and regard them as key competitive differentiators are characterized as progressive.

smaller businesses with just one or two locations and those in the manufacturing industry that employ a high proportion of hourly workers are two types of employers that frequently fit the standard profile.

a holistic approach to employee benefits contributes to employee engagement and satisfaction.

according to metlife’s study, 82% of emploees believe work/life programs would improve retention.

the most critical step in establishing a high-quality benefits experience is effective communication.

many apps can streamline and make your travels easier as well as save you money on flights and hotels. here the underlined word "streamline" means _________.

experts agree that _________ are the crucial factor in compelling presentations.

whic one is not the characteristic of communication __________ according to the definition of communication:

what is the most important skill that the employers seek according to the survey reported by forbes magazine in 2015 ____________.

what is the benefit of speaking slowly? ___________ .

which of the following non-verbal behavior is the most important in a presentation according to anderson in the additional reading material?_________

we always do thorough market research before we price our product so that our price would be proper for our target customers and competitive in the market. in chinese, the underlined word “price” is _________.

which of the following statements is/are true of slides?___________

being nervous in a presentation ___________.

noise in the communication process model can be both external and internal. which of the following is/are example(s) of internal noise?_______.

there are ten components in the communication process model, i.e., sender, encoding, message, channel, decoding, receiver, response, feedback, noise and context.

there are two kinds of noises: the external and internal noise.

the context does not matter in the communication process as long as the message is passed on to the receiver successfully.

customer base are the group of customers who repeatedly purchase the goods or services of the business.

product lines are usually created by a company as a marketing strategy to attract new customers to buy a brand.

the sales of a particular company in a market, expressed as a percentage of the total sales is called .

online chat is a way of communicating by sending text messages to people in the same chat-room real-time.

which one is not the reason that some people think it convenient to shop online?

the online stores

e-commerce has witnessed a growth all over the world these years.

letters are usually delivered by a postman whereas e-mails are sent through .

the popular chinese name for a search engine is

to snag new customers and keep the old ones remembering you vividly, seriously plan to launch a newsletter, and send it to all prospects and customers on a basis.

users can transfer data from a computer an iphone with a click of the mouse.

if you plan to collect sensitive from your customers, you should use security systems like ssl.

which of the following statements is true?

there is a wide variety of products available to buy on the internet. there are lots of bargains in shops in the run up to different festivals to encourage people of shopping online to spend more money.

the more popular internet shopping becomes, the more people worry about the security.

amazon is criticized for alienating suppliers, content partners and publishers while alibaba have a different focus. alibaba helps all businesses, which makes it stand in stark contrast to amazon.

the quality of the customer service of southwest airlines is ensured through the efforts made by _____________.

the concept ___________ explains the close relationship between providing quality customer service and achieving impressive profits.

the drawbacks of automated customer service might include ____________.

the luxurious employee training offered by the four seasons hotels is called _________.

how do you account for the company's alarmingly high staff__________?

kids who develop affective and cognitive ________ form healthy relationships and argue less with their parents, research shows.

we had a chance to consult and ________ our diplomatic efforts and approaches with france.

__________difficulties, please do not hesitate to contact our customer service department.

when you work at the__________, you should be prepared to deal with emergencies.

the company decided to _______ a spanish manager as the president of the company.

southwest airlines mailed gifts to passengers after the flight delay in order to settle customer complaints.

most companies nowadays compete not only over product prices but more importantly on the quality of customer service.

the model of homeshoring is often adopted to attract experienced and educated customer service employees due to its high flexibility and low commuting costs.

the free product-loaner program created by cabela’s would not only perk up employees but also help them better empathize with the product issues that customers might have.

a (an) is a fixed or variable sum of that a company pays to its sales force, in an attempt to motivate personnel and spur revenues.

the museum is annually by funds from several major corporations.

the term “______ exports of goods” means the trade value of exports which “have been adjusted for price changes".

problems with service had a much______ than problems with the products themselves on customers’ likelihood to recommend a brand.

the potential drawback of this investment __________ is that it is exclusive in the u.s. when many believe international ersification is helpful.

csc assignment's initial aim was to develop the skills and experience to succeed as new global leaders.

americans nowadays prefer low-fat ice creams rather than rich taste ice cream.

european countries together with japan account for about half of all u.s. exports.

the monopolies in area of energy are benign, and so it's unnecessary for the government to eliminate them.

and the timing is especially favorable when the u.s. exporters can use the extra support of globalization.

all new teachers went through a __________ training before they start to teach in this international school.

yoga exercise ________ me to adjust my breathing and concentrate well.

the house will be sold at an _________ price of 50,000 dollars.

your suggestions are always uninspiring. besides, why do i have to listen to you __________.

we don't usually take chesks, but we will ___________ in your case.

for this part, you are supposed to write a composition entitled “changes in people’s diet”. you should write at least 150 words but no more than 200 words, and base your composition on the outline given below in chinese. 1. 近年来,人们的饮食大大地变化 2. 变化的原因 3. 你的看法

it is believed that increased satisfaction has a (an) ___________ impact on consumer spending, cash flow, and business performance.

normally, a typical ________ follows the pattern of prosperity, recession, depression, and recovery.

pro bobo is a latin phrase for ________ undertaken voluntarily and without payment.

you shouldn’t _________ the exercise equipment while others are waiting to use it.

code of conduct is a set of rules outlining the social norms, religious rules and responsibilities of, and or proper practices for, and inidual. in chinese, code of conduct is __________.

survey participants ________ their approach to employee benefits into one of the four profiles.

one possibility she is seriously considering is to introduce a line of sorbets based on exotic fruits like kiwi and mango and the use low-calorie sweeteners. what does the underlined word “exotic” probably mean?

if you pay by credit card, you have to ________ the transaction by signing a pay slip.

长期不遗余力地致力于全额资助退休金计划的企业很可能属于这个种类。the underlined phrase “退休金计划” is _________ in english.

“制造业是主要的受益者。” the underlines expression “受益者” is _________ in english.

as people notice consistently quality differences, customers’ attitudes improve or deteriorate quite quickly.

participants in ibm’s csc assignment are all teams of excellent employees to help communities worldwide address challenges.

the mistake of ibm, a compe of microsoft, was that it licensed at “microsoft” the primitive operating system and did not stipulate for own exclusive rights.

the most critical step in establishing a high-quality benefits experience is effective communication.

the statement “in the past, business was only responsible to shareholders” means companies are set up to fulfill investors’ business and societal plans.

“dessert junkies” are those people with yearning for low-fat frozen yogurt and low-fat ice cream.

few nations of the world have the raw materials, climate, technology, and skilled labor needed to produce all the goods and services they may desire.

the most obvious solution to monopoly would be the diemberment.

a holistic approach to employee benefits contributes to employee engagement and satisfaction.

devaluation of the us dollar makes the prices of foreign currencies and products less expensive to americans.

cultural ersity is a distinct feature of the new york city subway.

the experts are always changing their minds about what healthy eating really is.

“the subway is the thing we love to hate”, the phrase “love to hate” can best be paraphrased by we hate more than we love.

a rival company is trying to _______ her away from her present job with an offer of a higher salary and more paid holidays.

traveling by greyhound is _________, thus lots of people go around the country by it.

retired people are entitled to _______ a special allowance from the government.

overall, the luxury market ___________ 13% of all new-car sales in the usa.

everyday we receive ________ information from the internet. the important thing is being able to judge which is correct.

don't ________ yourself by asking his permission for everything you want to do.

the computer has had three ________ this morning! it must have been infected by a deadly virus.

with his help in putting all the scattered information together, the research finally starts to ________ now.

athletes from 28 countries _________ the event, and only the best can make it to the final.

the police are still _________ his story.

i want scott to feel fulfilled, but how can i ask him to _________ on the hobbies without being a nag.

securities are stocks, shares, bonds, or other certificates that you buy in order to earn regular interest from them or to sell them later for a profit. the chinese version for “securities” is _________.

the csc idea is to instill _____________ and leadership skills for less-structured, erse business environment and cultures.

employee benefits represent an investment from which companies derive value, and it should be managed in line with an overall business strategy rather than written off as an .

if you're looking to boost customer satisfaction, one of the most promising places to start is____________.

if a company continues to support fully funded pension plans, which category will it likely fall into?

in the sentence "the subway is the thing we love to hate", the phrase "love to hate" can be best paraphrased by _________.

soft returns delivered by an effective benefits program include a sense of meeting obligations and goodwill and ?

choice and migration of position have reflected enterprise's dynamic resource distribution idea and the goal of maximized value in long-term. in chinese, resource distribution is _________.

which statements best describes the company that spends more money to fund its benefits programs than its compes?

the economy slumped, nascar struggled to find ways to keep its long races interesting, and some of the sport's more stars began moving to the sidelines.

international trade is the exchange of goods and merchandise across international boundaries or territories.

values-based regulation must be placed ahead of legal compliance when companies integrate csr into core business strategy.

when a country calculate its foreign trade’s contribution to gdp, it is the net exports minus imports.

frozen yogurt sales have declined rapidly for a long time because many people didn’t like the tart taste.

smaller businesses with just one or two locations and those in the manufacturing industry that employ a high proportion of hourly workers are two types of employers that frequently fit the standard profile.

according to the case-study reading, the strong growth in economies overseas is not driven by their exports to america but by their own domestic demand.

the retail price of haagen-dazs is quite high when compared with other premium ice cream.

according to metlife’s study, 82% of employees believe work/life programs would improve retention.

in current marketing company era, marketing’s role is to pursue long-term customer satisfaction.

a trade surplus will decrease a country’s gdp data.

monopoly means that a monopolistic activity or right that is concentrated in a certain sphere.

currency appreciation is not good for a country’s export.

since people have been increasingly aware of the dress prejudice against hillary’s dress, there will be fewer and fewer offensive remarks.

the new york city subway is notorious among the residents.

healthier foods are always more expensive.

the evidences in hand, the judge ruled him guilty.

some poisonous elements in pesticide are through heating and can be absorbed by human body.

the benefits i have mentioned, doing exercises regularly may help to improve one’s self image.

one’s of the world is greatly influenced by his social status and educational background.

when the workers union went on a strike, the country’s air traffic was .

retired people are entitled to a special allowance from the government.

through his efforts the company finally sealed the deal.

the sales team failed to the directors of the feasibility of their suggestion.

prices as inflation got worse.

to our great surprise the real murderer in the detective story the narrator’s best friend.

many emerging all business seem to try anything that as long as it might make some money.

in business, you should be able to how your compes will act.

5班第6周 休克、mods

是mods发病机制的基石.

1991年accp/sccm联席会议将mods定义为( )加器官功能障碍.

1996年由vincent提出的( )适合感染所致mods的诊断标准.

以下说法错误的是:

以下mods以下哪个是正确的?

关于mods以下叙述哪个是不正确的?

关于多器管功能不全综合症(mods)以下哪个是错误的?

关于多器官功能不全综合征(mods)以下哪些是错误的?

休克的概念是

以下不是根据血流动力学为分类依据的休克类型为:

休克早期引起微循环变化的最主要的体液因子是

自身输血的作用主要是指

休克经处理后,微循环改善的最主要的指标是:

抗休克首要而基本的措施是:

男性,35岁,汽车撞伤左季肋区4小时,神志模糊,体温37.5c,脉搏细弱,血压60/40mmhg, 全腹压痛,无反跳痛,无尿。首先考虑的诊断是

下列哪一项是多发伤临床特点 ( )

针对严重创伤者,损伤控制外科策略旨在避免的死亡三联征是指

挤压综合征的临床特点:()

复合伤的主要致死原因除了以下哪项均是()

上肢上止血带的部位()

批量伤员分拣,按国际规范,代表危重伤病情的颜色是()

对多发伤处理下面说法错误的是()

创伤基本生命支持包括哪些内容()

不属于创伤评分内容的是()

烧伤复合伤的临床特点有哪些()

创伤的主要分类类型不包括()

关于创伤现场救护目的,不正确的是()

多发伤死亡3个高峰时间中受院前急救和医院急诊科救治影响较大的是()

同一因素造成多部位、多脏器严重损伤,且至少有一处损伤危及生命,属于()

外伤性颅内血肿是严重的继发性脑损伤,其中最严重的后果是()

识别不同序列但切出的dna片段具有相同末端序列的酶称为() 

关于ⅱ型限制性核酸内切酶,下列说法中错误的是() 

根据酶切活性对盐浓度的要求,ⅱ型限制性核酸内切酶往往可分成

以下属于大肠杆菌中的dna聚合酶的是

基因工程中klenow片段的应用包括

细菌质粒载体所能携带的外源基因只限于()以下的dna片段。

柯斯质粒(coid)是一种 ()载体

最早被用来动物细胞转基因的载体是

基因工程载体应该具备那些特征?

puc质粒与pbr322质粒比较增加的元件有

用可调式移液器移取普通缓冲液时,正确的操作为

离心技术中g是指

下列哪种离心机具有真空系统

配制生物化学实验缓冲液时,搅拌溶解固体药品时,需要用到下列哪种仪器

离心机中离心管适配器的作用是

为了准确称量5 mg的药品,需要用下面哪种规格的天平

对蛋白质样品透析脱盐时,需要用到下面哪种仪器

sds-page电泳在制备电泳样品时,需要对样品进行95℃加热反应,需要用到以下哪种仪器

蛋白质电泳凝胶的染色和脱色需要用到下面哪种仪器

可调式移液器使用完毕,下面哪个说法是错误的

用移液器移取黏稠溶液时,可采用反向移液法,即吸液时将移液器控制按钮按到第二档吸取溶液,打出液体时按到第一档,部分液体残留在吸头内。此说法是否正确

在离心操作中,离心管的平衡是指将一对离心管及其中的溶液调整到重量相等,在离心机转头中相邻放置即可进行离心操作。此做法是否正确

ph计使用前需用标准ph溶液校准方可使用,用完后需将电极洗净擦干,浸泡在饱和氯化钾溶液中保存。此做法是否正确

请比较分析差速离心、速度区带离心和等密度梯度离心的特点及应用范围。

生物组织细胞的破碎是指用一定的方法破坏细胞壁或细胞膜,将胞内物质释放出来的过程。破碎方法有

常用的机械破碎生物组织细胞的方法有

蛋白质中半胱氨酸残基是不稳定的基团,容易被氧化,以下能保护巯基不被氧化的物质是

常用磷酸酶抑制剂有

以下哪些是常用的蛋白酶抑制剂

巯基是许多蛋白质和酶活性部位的必需基团,极易被氧化,形成分子内或分子间的二硫键,导致酶活性丧失。提取液中可加入以下哪些物质防止巯基的氧化

生物材料如不立即提取纯化,可根据情况放入液氮或-70℃超低温冰箱冷冻长期保存。此说法是否正确

生物大分子提取过程中,超声波破碎法属于物理破碎法,常用于微生物材料的破碎。此说法是否正确

生物大分子提取时,超声波破碎过程中产热较多,要注意操作时冰浴,并间歇进行。此说法是否正确

利用溶菌酶专一地破坏细菌细胞壁,随后在渗透压差作用下,导致细胞完全破碎。此说法是否正确

生物大分子提取时,在缓冲液中将生物组织细胞破碎,使胞内生物活性物质充分释放到溶液中,有利于提取或吸附。此说法是否正确

盐离子能减弱生物分子间的离子键和氢键的作用。稀盐溶液对蛋白质等生物大分子有助溶作用,常用于大多数生化物质的提取。此说法是否正确

多数生化物质的溶解度随提取温度的升高而增加。较高的温度可降低提取物的粘度,有利于分子扩散和机械搅拌,生物大分子的提取最好在室温进行。此说法是否正确

温度升高,生物大分子容易降解。为防止变性和降解,对于具有活性的蛋白质和酶,提取时一般在0℃~5℃的低温操作。此说法是否正确

为了增加生物大分子的溶解度,对两性物质的提取,缓冲液的ph值在该两性物质的等电点附近为佳。此说法是否正确

下列哪些糖不是还原糖

双链dna在过酸、过碱或加热条件下发生变性,双螺旋结构破坏,使碱基充分暴露引起紫外吸收

能迅速测定蛋白质含量且不消耗样品的方法是

folin-酚法是双缩脲和酚试剂反应的结合,下面哪种说法是错误的

以下几种测定蛋白质含量的方法中蛋白质肽键没有与铜离子形成络合物的方法是

以下几种测定蛋白质含量的方法灵敏度最低的是

考马斯亮蓝g-250(coomassie brilliant blue g-250)测定蛋白质含量,考马斯亮蓝g-250与蛋白质结合后的最大光吸收为

bca法是在碱性条件下,蛋白质将二价铜cu2 还原为一价铜cu ,cu 与bca试剂形成的复合物的最大光吸收为

蛋白质具有吸收紫外线的性质,吸收峰最大值的波长为

已知某蛋白质的百分消光系数 e(1cm, 1%)= 5.2,蛋白质溶液稀释20倍,实验测得的a280 nm吸光值为0.25,则蛋白质稀释前的浓度为

蛋白质具有吸收紫外线的性质,与之相关的氨基酸是

酶标仪的优点为

酶标仪可用于

3,5-二硝基水杨酸比色法是测定还原糖的方法,此说法是否正确

核酸、核苷酸及其衍生物的分子结构中的嘌呤、嘧啶碱基具有共轭双键系统,能够强烈吸收紫外线,其吸收峰在280 nm处,此说法是否正确

凝胶过滤分离蛋白质是根据蛋白质分子的什么性质分离

一个蛋白质混合样品溶液经过凝胶过滤层析,先流出柱外的是

用凝胶过滤层析分离下列4种蛋白质混合物,最先从层析柱中洗脱下来的是

凝胶过滤层析可用于

以下哪种技术利用分子筛原理分离蛋白质

离子交换树脂的磺酸基属于哪种交换基团

根据被分离物质在溶液中的解离度及解离后离子所带电荷的性质选择使用离子交换层析介质的类型。当缓冲液ph大于蛋白质的等电点时,分子带负电荷,需要选择

使用离子交换层析分离组分多、解离度差别小的样品时,采用哪种洗脱方式能更好的分离样品中的各组分

关于亲和层析下面哪种说法是错误的

亲和层析中生物大分子与配基产生亲和作用不能是下列哪种相互作用力

离子交换剂主要由活性载体和离子交换基团组成。此说法是否正确

生物大分子在电场中的移动速度取决于

制备聚丙烯酰胺凝胶时,凝胶聚合需要加入

净电荷聚丙烯酰胺凝胶电泳最重要的特点是

净电荷聚丙烯酰胺凝胶电泳分离蛋白质的依据是

净电荷聚丙烯酰胶凝胶电泳的样品中

聚丙烯酰胺凝胶不连续电泳的优点是

sds-page分离蛋白质的依据是

关于利用sds-page方法测定蛋白质相对分子质量,哪个说法是正确的

下面哪种方法不能用于测定蛋白质的相对分子质量

等电聚焦电泳是基于蛋白质的

关于载体两性电解质,哪个说法是错误的

在聚丙烯酰胺凝胶不连续电泳的浓缩胶中,以下有效迁移率排序正确的是

电泳是带电颗粒在电场的作用下,向着与其电性相同的电极方向移动。此说法是否正确

sds-page不连续系统电泳中配制分离胶和浓缩胶的缓冲液为什么具有不同的ph?

抗原分子诱导机体产生免疫应答的能力称为

完全抗原的特征是

接受抗原后活化、增殖分化为浆细胞的淋巴细胞为

抗原与抗体结合发生交叉反应是因为

抗原与抗体特异结合的部位在

免疫球蛋白的结构是由

抗体与抗原决定簇互补结合的部位是

在初次免疫应答中产生的抗体主要是

再次免疫应答中产生的抗体主要是

抗原抗体的结合力主要有

下列关于佐剂功能主要有

半抗原必须与载体结合才具有免疫原性,这种说法是

亲和层析法提取谷胱甘肽转硫酶gst实验中,缓冲液buffer a中的nacl的作用是

亲和层析法提取谷胱甘肽转硫酶gst实验中,缓冲液buffer a中的edta的作用是

亲和层析法提取谷胱甘肽转硫酶实验中,缓冲液buffer a中的dtt的作用是

亲和层析法提取谷胱甘肽转硫酶实验中,缓冲液b中的gsh的作用是

km值近似等于酶和底物结合生成的中间复合物[es]的解离常数,下面叙述正确的是

8、(1分)关于米氏常数km的说法叙述错误的是

影响酶促反应的因素不包括

谷胱甘肽转硫酶(gst)活力测定实验中所用的酶的底物有

所有的酶都是蛋白质。此说法是否正确

亲和层析法提取谷胱甘肽转硫酶实验中,选择兔肝作为来源的原因是gst酶在哺乳动物肝脏中酶活力最高。此说法是否正确

酶的比活力指每毫克蛋白质所具有的酶活力单位数,是表示酶纯度高低的重要指标。此说法是否正确

酶活力的测定应贯穿于酶分离纯化过程的始终,酶分离纯化的效果可以用总活力的回收率和比活力提高的倍数作为指标。此说法是否正确

sds-page电泳样品制备中所用的sds loading buffer中不含有以下哪种物质

sds-page电泳如需要配制10 ml12%的分离胶,需要多少30%凝胶贮液

sds-page电泳配制浓缩胶所用的tris-hcl缓冲液ph为

western blot所用的pbst溶液中的“t”代表的是以下哪种试剂

使用超声法破碎大肠杆菌时,实验中在室温下超声即可。此说法是否正确

在使用酶裂解法裂解大肠杆菌,所用的溶菌酶作用是专一破坏细菌的细胞壁,使大肠杆菌破碎。此说法是否正确

大肠杆菌裂解时,核酸酶的作用是降解核酸,降低因dna引起的蛋白样品粘稠现象。此说法是否正确

原白表达时,大肠杆菌裂解后得到的菌体可溶性蛋白提取液如不立即纯化,可保存在4 ℃。此说法是否正确

elution buffer中高浓度咪唑的作用是咪唑与组氨酸的咪唑基竞争性结合层析介质上的ni2 ,从而把目的蛋白竞争性洗脱下来,此说法是否正确

何时开始准备求职是最好的

求职的第一步是什么

在求职omg原则里,o代表的含义是

写简历应该遵循的步骤是

往往容易被应届毕业生写简历时忽略的项目是

下列不属于职业测评的考量因素

下列不属于大型招聘会的特点是

搜集就业信息时,互联网的缺点是

目前被认为是求职成功率最高的信息来源是

下列关于校园宣讲会错误的是

简历上的照片应该是

下列不属于omg中原则的是

什么时候发简历最好

简历最好写多少页

在简历omg的四个关键字分别是

以下不属于网申的优点的是

网申中,常见的开放式问题不包括

以下不属于网申受hr欢迎的原因是

完成网申正确的做法是

关于网申,以下做法不正确的是

下列关于面试的说法错误的是

下列关于面试分类的说法错误的是

以华为的面试流程为例, 研发类和财务类岗位的第一个环节是

关于“问之以是非,而观其志。”说法错误的是

以下哪种方法最适合考察应聘者的心理素质

在进行自我介绍时,以下做法不正确的是

在自我介绍1-3-1结构中,不属于最后“1”的是

以下不属于面试官进行自我介绍环节面试的目的是

自我介绍时的谈吐,应该记住3个p不包括

在自我介绍面试环节中,以下做法错误的是

以下对“为什么越来越多的公司选择群面”的解释不正确的是

以下哪个角色可能最早确定人选

下面不属于群面要考察leader的点

在群面中提出了一个很好的金点子,但没有通过面试,原因不可能是

以下哪种做法对从无领导小组讨论中脱颖而出没有帮助

以下到达面试地点最好的时间是

被问及职业规划和职业目标时,以下回答不正确的是

面试时,讲一个好的故事具备的基本要素不包括

当被问及到期望的薪资的问题时,不恰当的回答是

当被问及到为什么要选我们公司为什么选这个职位的问题时,不恰当的回答是

进行电话面试时,正确的接电话姿势是

进行电话面试时不正确的做法是

如果用人单位打电话来对你进行面试,而你正在公交车上,最好的处理办法是

下列不属于电话面试的小技巧的是

下列不属于电话面试的优点的是

下列关于面试礼仪说确的是

关于男士西服的说法错误的是

关于女士着装的说法,正确的是

面试中,以下哪些行为是不对的

下列关于面试着装的配饰,说确的是

在访谈中,外企喜欢应聘者具备的素质中,以下哪个嘉宾没有提到

在访谈中,民企喜欢应聘者具备的素质中,以下哪个嘉宾没有提到

自身要求与招聘条件不符,还可能被录用么,以下说法错误的是

下列说法中,不正确的是

访谈中关于外企与民企福利的说法,以下错误的是

嘉宾提到的公务员应聘者应具备的素质,不包括

访谈中,嘉宾提到占公的多少比例

以下哪种面试方式在国企面试中没有提及

公务员招聘是否存在不公平现象,说法错误的是

关于国企员工和公务员的发展空间,以下说法错误的是

学校以什么为中心作为招聘要求?

高校招聘老师的学历普遍要求——以上

想进高校和科研院所,在大学期间可以做哪些准备,下列不正确的是?

高校一般有多长时间的考察期?

科研院所更看中毕业生什么能力?
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