基础理论题库(消防员)试卷及答案分享-新全讯2网

编辑出版问答 0982

机械零件可能产生疲劳断裂时,应按照 准则计算。

机械零件可能出现过大的弹性变形时,应按照 准则计算。

下列机械零件中__________ 是通用零件。

下列机械零件中___________是专用零件。

零件的工作安全系数为________。

有一根阶梯轴,用45钢制造,截面变化处过度圆角的应力集中系数 =1.58, 表面状态系数 = 0.82,尺寸系数 =0.68,则其疲劳强度综合影响系数 = ________。

零件的截面形状一定,如绝对尺寸(横截面尺寸)增大,疲劳强度将随之_______。

在载荷和几何尺寸相同的情况下,钢制零件间的接触应力 铸铁零件间的接触应

当零件其一截面上存在几个应力集中源时,零件的有效应力集中系数应取______ 。

由试验知,有效应力集中、绝对尺寸和表面状态只对 有影响。

某结构尺寸相同的零件,当采用 材料制造时,其有效应力集中系数最大。

某零件的δs=500mp ,δ-1=220mp ,工作应力δm=300mp , δa=100mp ,工作点位于塑性安全区,则该零件的安全系数为 。

两圆柱体接触,其直径d1=2d2 ,弹性模量 e1=2e2,长度b1=2b2 ,则其接触应力δ1 和δ2 的关系是 。

已知某转轴在弯-扭复合应力状态下工作,其弯曲与扭转作用下的计算安全系数分别为 sσ =6.0;sт =18 ,则该轴的实际计算复合安全系数s为______。

在常用螺纹类型中,主要用于传动的是________。

当螺纹公称直径、牙型角线数相同时,细牙螺纹的效率________粗牙螺纹的效率。

某单个螺栓联接,要求被联接件接合面不分离,假定螺栓的刚度cl与被联接件的刚度cf相等,联接的预紧力为qp。现在对联接施加轴向载荷,当外载荷f达到与预紧力qp的大小相等时,________。

受轴向变载荷的螺栓联接中,已知预紧力qp = 8000 n,工作载荷:fmin = 0, fmax= 4000 n,螺栓和被联接件的刚度相等,则在最大工作载荷下,剩余预紧力为_____。

受轴向变载荷作用的紧螺栓联接,当增大螺栓直径时,螺栓的疲劳强度________。

当螺栓组承受横向载荷或旋转力矩时,该螺栓组中的螺栓________。

采用悬置螺母的作用是________。

在下列四种具有相同公称直径和螺距,并采用相同配对材料的传动螺旋副中,传动效率最高的是 。

当两个被联接件之一太厚,不宜制成通孔,且联接不需要经常拆装时,往往采用____。

受横向工作载荷,普通螺栓连接时螺栓所受载荷为 。

普通平键联接与楔键联接相比,最重要的优点是__________。

半圆键联接的主要优点是__________。

矩形花键联接通常采用__________定心。

设平键联接原来传递的最大转矩为 m,现欲增为1.5m ,则应 。

两级圆柱齿轮减速器的中间轴上有两个转矩方向相反的齿轮,这两个齿轮宜装在

键的剖面尺寸b×h的选取依据是 。

普通平键连接在选定尺寸后,主要是验算其 。

当键连接强度不足时可采用双键,使用两个切向键时要求两键 布置。

一般采用 加工b型普通平键的键槽。

下列连接中,只能用两个键才能承受双向转矩的是 。

带传动采用张紧轮张紧时,合理的张紧轮位置为 。

带传动的中心距过大时,会导致 。

用_________提高带传动传递的功率是不合适的。

在带传动的稳定运行过程中,带横截面上拉应力的循环特性是_________。

一增速带传动,带的最大应力发生在带_________处

设计v带传动时,发现带的根数过多,可采用_________来解决。

一定型号的v带传动,当小带轮转速一定时,其所能传递的功率增量δp取决于_________。

带传动中,从动轮上发生弹性滑动时,则 。

当摩擦系数与初拉力一定时,则带传动在打滑前所能传递的最大有效拉力随 的增大而增大。

带传动的主动轮是 。

在设计闭式硬齿面传动中,当直径一定时,应取较少的齿数,使模数增大 以__。

在直齿圆柱齿轮设计中,若中心距保持不变,而把模数增大,则可以__。

齿面硬度为56~62hrc的合金钢齿轮的加工工艺过程为__。

直齿圆柱齿轮传动,其齿根弯曲疲劳强度主要取决于 。

斜齿圆柱齿轮的螺旋角β过大,会使 。

选择齿轮的结构形式和毛坯获得的方法与_______有关。

圆柱齿轮传动,__________的齿向载荷分布系数最大。

齿轮传动中,当齿轮在两支承之间非对称布置时,为了减小 ,通常在远离齿轮端输入转矩。

一对标准渐开线齿轮作减速传动时,若两轮的许用弯曲应力相等,则两轮的弯曲强度________。

在下面的各种方法中,_________不能增加齿轮轮齿的弯曲疲劳强度。

1、在设计闭式硬齿面传动中,当直径一定时,应取较少的齿数,使模数增大 以__。

2、在直齿圆柱齿轮设计中,若中心距保持不变,而把模数增大,则可以__。

3、齿面硬度为56~62hrc的合金钢齿轮的加工工艺过程为__。

4、直齿圆柱齿轮传动,其齿根弯曲疲劳强度主要取决于 。

5、斜齿圆柱齿轮的螺旋角β过大,会使 。

对于传递动力的蜗杆传动,为了提高传动效率,在一定限速内可采用 。

在标准蜗轮传动中,蜗杆头数一定,加大蜗杆特性系数,将使传动效率 。

闭式蜗杆传动失效的主要形式是 。

对闭式蜗杆传动进行热平衡计算,其主要目的是 。

普通平键联接与楔键联接相比,最重要的优点是__________。

矩形花键联接通常采用__________定心。

带传动采用张紧轮张紧时,合理的张紧轮位置为 。

带传动的主动轮是 。

链传动的张紧轮应装在

齿面硬度为56~62hrc的合金钢齿轮的加工工艺过程为__

选择齿轮的结构形式和毛坯获得的方法与_______有关

齿轮传动中,当齿轮在两支承之间非对称布置时,为了减小 ,通常在远离齿轮端输入转矩。

蜗杆传动变位前后,蜗轮的节圆直径

影响蜗杆传动效率的主要因素是 。

what does civil engineering deal with?

what are the names of the wonders in ancient china,which are mentioned in the video? please give their names.

what are the names of the ancient wonders abroad, which are mentioned in the video? please give their names.

what are the branches of civil engineering?

what are the meanings of the terms below? • mound • slab • breakwater • waterway

early civilizations built monuments to____ or ____,or for military reasons.

geotechnical engineering concerns fields of ____________________________.

please write down the possible attributes of a qualified civil engineer.___________________________________________________________________________________________________________________________________________________________________________

what are the responsibilities of civil engineers?________________________________________________________________________________________________________________________________________________________________________________

how are you going to practice your abilities as a future civil engineer?

civil engineering has a long history, and can be _________ back to the ancient times.

in the ancient time, human beings lacked the _________ equipment for construction.

civil engineering is not only about designing and constructing, but also about ________the infrastructure.

civil engineering is also about _______ the infrastructure.

as a ______________ field of the engineering branches, civil engineering can be ided into various sub-disciplines.

__________engineering is a civil engineering branch focusing on the framework of structures.

___________engineering is a branch of civil engineering concerned with the engineering behavior of earth materials.

water resources engineering deals with the design and operation of systems to control and _______ water.

civil engineers _________ all phases of construction.

civil engineers are in charge of the ________of the finished projects.

what kind of civil engineer do you want to become? what attributes should you possess to be a successful one? how would you practice yourself from now on to achieve your goal?

discipline column bid load grading foundation beam process 6. every construction _________ is unique and depends on the scope and complexity of the project.

which of the following materials are raw materials?

green materials are clean, so they do not come from gabage areas.

the advanced materials mentioned in the pre-reading part of study are __________________, _______________________, _______________________________ and ___________________________________.

the features of green materials are(the 1st question out of 3) : 1. they are ________________________.

the features of green materials are(the 3rd question out of 3) : 3. they are intended to improve people’s ___________and _______________.

study the meaning of the underlined words in the following sentences and choose their synonyms. the manufacture of building materials is an established industry in many countries and the use of these materials is typically segmented into specific specialty trades, such as carpentry, insulation, plumbing, and roofing work.

study the meaning of the underlined words in the following sentences and choose their synonyms. we have listed some green building materials that offer alternatives to concrete, and a lower environmental impact.

study the meaning of the underlined words in the following sentences and choose their synonyms. as its name might indicate, grasscrete is a method of laying concrete flooring, walkways, sidewalks, and driveways in such a manner that there are open patterns allowing grass or other flora to grow.

study the meaning of the underlined words in the following sentences and choose their synonyms. the contents are carefully proportioned and mixed, and then machine-compacted in removable formwork to yield a stone-like wall that is massive, water-resistant, load-bearing and long-lasting.

study the meaning of the underlined words in the following sentences and choose their synonyms. in fact, walls that have a similar feel to concrete can actually be created with nothing more than dirt tamped down very tightly in forms.

study the meaning of the underlined words in the following sentences and choose their synonyms. modern rammed earth buildings can be made safer by use of rebar or bamboo, and mechanical tampers reduce the amount of labor required to create sturdy walls.

2. mud brick--- ______

3. mycelium--- ______

4. ferrock--- ______

5. rammed earth--- ______

6. grasscrete--- ______

7. hempcrete--- ______

2. rebar_______

3. lime______

4. concrete_______

5. tensile______

6. cement_______

7. clay_____

8. synthetic_______

the specific meaning of the term "concrete" is _____________.

the specific meaning of the term "assemble" is _____________.

the specific meaning of the term "accommodate" is _____________.

the specific meaning of the term "column" is _____________.

the specific meaning of the term "flexibility" is _____________.

please give the fixed phrases appeared in this unit according to the chinese meanings. 震烈度

please give the fixed phrases appeared in this unit according to the chinese meanings. 外壳

please give the fixed phrases appeared in this unit according to the chinese meanings. 聚合物膜

please give the fixed phrases appeared in this unit according to the chinese meanings. 钢结构

please give the fixed phrases appeared in this unit according to the chinese meanings. 可回缩屋顶

please give the fixed phrases appeared in this unit according to the chinese meanings. 建筑物,建造工程

please give the fixed phrases appeared in this unit according to the chinese meanings. 抗压力度

please give the fixed phrases appeared in this unit according to the chinese meanings. 热膨胀

a __________or pillar in architecture and structural engineering is a structural element that tranits, through compression, the weight of the structure above to other structural elements below.

the building can __________ all of the offshore workers and protect them from hurricane damage.

the stadium is a mass of intertwined steel ________; it looks just like abird’s nest.

low-power lasers can cut and ________ plastics; higher-power lasers can cut and weld metals.

if the railway has done well this far, as he says it has, then it will likely ________ whatever stresses the climate throws at it next – at least for a while.

the international conference on civil engineering will be held in november 2017, and the________ deadline for the conference is august 10.

epoxy aspohalt concrete has been used in steel ________ pavement for more than 30 years abroad, so a lot of experience has been obtained by engineers.

for this type of metal, a special zinc ________ must be used. otherwise your subsequent coats will eventually flake off.

main cables of suspension bridges are always _________ in a parabolic curve that most people instinctively enjoy.

the ___________ of a bridge is the distance between the lowest point of the bridge and the road or the water under the bridge.

the shelves should be securely _______ to the wall.

the golden gate bridge, a prominent (prompt, sepctacular, piercing, sharp) landmark of america, is one of the longest suspension bridges in the world.

the most primitive version (insight, conception, awareness, variation) is a vine rope linking two sides of a cha; a person travels across by hanging from the rope and pulling himself along hand over hand.

somewhat more sophisticated (intelligent, invasive, advanced, prosperous) designs incorporate a flat surface on which a person can walk, sometimes with the assistance of vine handrails.

the suspension cables must be anchored at each end of the bridge, since any load applied to the bridge is transformed into a tension (nervousness, force, flexibility, relaxation) in these main cables.

the final graceful suspension design was conceived and championed (supported, defeated, convinced, persuaded) by consulting engineers leon s. moisseiff and o.h. ammann.

please select one word from the following nine words, and fill in each blank. in today's fast-paced, knowledge-based business world, it's not uncommon to see project managers juggling as many as 10 projects _______ --with all types of complexity, duration, and sizes.

please select one word from the following nine words, and fill in each blank. although each project is unique, there are key concepts that a project manager can use to ______ and guide a project to completion.

please select one word from the following nine words, and fill in each blank. _______ is an estimated assesent of risk within the process of design and construction that may result in increased costs beyond that estimated project budget.

please select one word from the following nine words, and fill in each blank. in the tough years of the construction industry, many contractors, faced with fewer jobs and more competition, are tempted to _______ projects in order to get the work and then try to make up the difference through changing orders and extra work claims.

please select one word from the following nine words, and fill in each blank. most defects in construction projects are due to human error, which is likely to happen due to poor performance in during construction process.

please select one word from the following nine words, and fill in each blank. there’s no such thing as or infallible. even if you put a team of professionals to work around the clock on your campaign, there will always be mistakes, mishaps, unexpected bumps on the road, etc.

please select one word from the following nine words, and fill in each blank. final plans for a renovation and construction project to modernize the agricultural engineering building at an estimated cost of $44.5 million were approved by the board of at their may 7 meeting.

please select one word from the following nine words, and fill in each blank. the house is carefully externally and this also affects the interior, where the rooms are spacious and well-lit by natural daylight.

the most amazing thing about _______ (自然) is its infinite variety.

although the assumptions are reasonable, there are often variations due to the _____(本质) of construction work.

it is really challenging to build the house at an _____ (海拔) of about 13000 feet above sea level.

the preparation of a design requires many iniduals who must perform design calculations, coordinate related work, and produce many sheets of drawings that have _______(主面图), sections, details, and dimensions.

some time ago a british car manufacturer was accused of operating a fund to pay bribes, and of other questionable practices such as paying agents and purchasers an exaggerated ________(佣金), offering additional discounts, and making payments to numbered bank accounts in switzerland.

for his dedication the mayor _______ed (奖励) him a medal of merit.

a careful evaluation of each contractor’s bid is necessary before the ______(给予) of a construction contract.

6. the project manager must contend with problems as described above. ( compete, argue, involve, deal )

control _________控制点

structural __________ 结构变形

______________ control高度控制

_________ monitoring位移监测

______ survey地面测量

pile _______ 桩定位

ground ________地面沉降

much of the area of the country has received _______precipitation (降水)since the end of january.

the history of civil engineering can be traced back to ancient times when the sole means of construction was human labor, lacking any sophisticated equipment.

nowadays, we often associate civil engineering with the world's most jaw-dropping structures.

斜拉桥

please give the full words of the following initiali. make sure the first letter of each word is capitalized. gps

please give the full words of the following initiali. make sure the first letter of each word is capitalized. gis

please give the full words of the following initiali. make sure the first letter of each word is capitalized. dem

please fill in the blank using one of the phrases from the list below. change form if necessary. run off ground water overflow freshwater exists in lakes, rivers, ______________ and is frozen as snow and ice.

提出“以美育代”的是谁?

美术教育存在以下哪几种形态?

古代美术教育主要分为( )和( )两类。

《 》被认为是现存最早的工艺规范著作。

( )图画手工科是我国最早的高等师范美术教育系科。1

( )在1908年发表的《论教育之宗旨》

1950年8月颁发《 》, 这是成立后的第一个关于美木课程的文件

有的教师关心( ),探索适应美术学科特色的行之有效的评价方法,还有的教师专注于开发多种( ),尤其是地方资源,扩展美术课程的内容和方法等等。

下列极限不等于1的是( )

下列函数中能够构成复合函数的是( )

当时,以下变量是无穷小量的是( )

设函数,则 ( )

设,则是( )

函数在区间内( )

,则( )

函数的导数是( )

函数的极大值是2( )

函数在点处连续( )

成品茶按照()分成六大基础茶类。

下列不是描述绿茶干茶色泽的是()。

鲜叶中的有色物质是构成茶叶色泽的基础物质,其中与茶汤色泽相关的是()。

茶叶的含水量控制在(),其风味品质能较好的保持原来的特征。

茉莉花茶不属于六大基本茶类,而是再加工茶。

大叶种茶树不能制成绿茶。

茶叶加工过程中,哪些茶没有“杀青”工艺()

茶叶制作过程中,揉捻的加压模式应该采用()

茶叶萎凋过程中,叶片会产生哪些变化()

在绿茶加工发展过程中,炒青绿茶的产生早于蒸青绿茶。

红茶发酵时,环境湿度要达到90%以上才能保证发酵顺利进行。

采用盖碗法审评乌龙茶时,茶水比为()

茶叶外形审评的因子不包括()

感觉的基本规律有哪些?

为了使绿茶发挥最佳的品质特征,审评时需要将水温控制在85℃左右。

茶叶审评术语“纯正”既能用于滋味也能用于香气。

茶叶外形审评因子中需审评干茶()、嫩度、色泽、整碎和净度要素。

产于安徽的涌溪火青属于()茶。

构成茶叶色泽的化学物质主要由 () 两大类组成。

茶树鲜叶中发现的酚类主要有()。

水杨酸甲酯具有强烈而愉快的茉莉花香。

绿茶杀青的主要目的是()。

蒸青杀青的绿茶,其干茶外形相比于滚筒杀青会()。

下列名优绿茶中,()外形是兰花形。

烘青绿茶的干燥一般分两次进行,第一次称为()。

锅式杀青的特点是速度快,功效高,连续作业,杀青程度较均匀。

红茶萎凋叶的含水量一般达到()为宜。

红茶揉捻的成条率至少应该达到()。

使红碎茶形成“浓、强、鲜”的品质特征,并且形成细小颗粒状的加工工艺是()。

红茶发酵时最适的相对湿度为()以上。

红茶汤色“发暗”主要是()含量过高引起的。

“浓、强、鲜”是()滋味特征。

香气特征“高甜浓郁”属于()工夫红茶。

香气特征“清纯持久”属于()工夫红茶。

色泽“青褐油润呈宝光”是对哪种茶干茶色泽的描述?()

以下哪些术语是对铁观音外形的描述?

大红袍属于()。

红茶制作过程中干燥温度偏高,容易产生()。

俗语“蛤蟆背”是对()干茶外形的描述。

形成红茶汤色“红艳”的关键工艺是()。

祁门红茶被誉为“世界三大高香红茶之一”,其干茶色泽()。

绿茶杀青的主要目的是()。

下列绿茶的归类中根据杀青方式进行的是()。

红茶萎凋叶的含水量一般达到()为宜。

红茶的干燥大多采用()的方式。

乌龙茶的萎凋程度较轻,因此一般采用()。

为了准确判断茶叶的形状和色泽,审评室应采用()灯光。

茶叶感官审评室内,湿评台用于评判茶叶内质,台面颜色要求为()。

下列不是描述绿茶干茶色泽的是()。

绿茶干茶中有红梗的可能原因是()。

“略带金毫,色泽乌润”是对()干茶色泽的描述。

以下是描述铁观音外形的有()。

“条索细秀,锋苗显露”是()的外形特征。

以下属于台湾乌龙茶的有()。

滇青是晒青绿茶的典型代表,其品质特征为()。

下列茶类中,属于六大基本茶类的是()。

绿茶杀青过程中,需要控制的工艺条件主要有()。

绿茶揉捻工艺的主要目的有()。

红碎茶的品质特征是()。

红茶干燥时温度过低会造成()。

乌龙茶的()品质特征与做青密切相关。

在审评实验室,为了节省空间,茶样可以和化学试剂放在一起。

感官审评时每个人感觉不同,因此不需要团队协作。

铁观音有特殊的兰花香,因此属于花茶。

安吉白茶不属于绿茶类。

茶叶含水量高于12%时,容易发生霉变现象。

为了能较好地保持茶叶的风味品质,环境湿度应该越低越好。

红茶是全发酵茶,采用常温保存就行,但一定要注意干燥、避光、防异味。

绿茶烘干一般分两次进行,其中第一次的烘干温度较高。

与绿茶相比,红茶揉捻的细胞破坏率应该更大,这样有利于发酵。

乌龙茶的做青分摇青和晾青两个过程,晾青为了擦破叶细胞,摇青则提供了充分的静置发酵时间。

做青是乌龙茶最重要且最具特色的工艺,是乌龙茶产生“绿叶红镶边”的关键工序。

感官审评茶叶时,用矿物质水冲泡会使茶汤更清澈。

西湖龙井是杭州特产,因此在杭州生产的龙井茶都被称为西湖龙井。

黄金桂盖碗审评法的第一次出汤时间是2分钟。

绿茶的外形有很多种,包括扁形、芽形、卷曲形等等,其中南京雨花茶是针形茶的代表。

绿茶按照杀青方式分类,可分为炒青、烘青、晒青。

绿茶杀青后叶子含水量偏高,会使茶叶色泽更加翠润。

色素可以分为水溶性色素和脂溶性色素,影响绿茶汤色的主要是水溶性色素,例如胡萝卜素类。

红碎茶的外形按等级可分为“叶、碎、片、末、茶”。

在我国,引起肝功能损害最常见的的原因是

病毒性肝炎中在最常见的类型是

以下哪项说法是正确的:

乙肝的主要传播途径不包括

关于母婴传播与阻断错误的是

慢性乙肝病毒感染者的分类不包括下列哪一项

乙肝两对半检测结果描述正确的是

反应肝脏细胞损伤程度最敏感的指标是

关于慢乙肝治疗以下不正确的是

乙肝病人的饮食和生活方式说确的是

慢性乙型肝炎病人都会有症状么?如果及时发现乙肝患者,是否没有症状就不需要治疗

丙肝的传播途径包括

hcv最主要的传播途径是

目前控制hcv传播的主要措施是

目前hcv感染的确诊方法主要是

常见的丙型肝炎病毒基因分型不包括

哪些人群应该进行丙肝的筛查

下面哪种行为不会传染

我国的流行现状不正确的是

以下哪个不是临床表现的分期

关于hiv检测的说法以下不正确的是

那种不是目前抗病毒治疗药物的主要分类

简述的临床分期及各分期的临床特征

以下属于时间依赖性抗菌药物的是

外科预防用抗菌药物的给药方法,接受清洁手术者,在术前( )小时内给药,或麻醉开始时给药,使手术切露时局部组织中已达到足以杀灭手术过程中入侵切口细菌的药物浓度。

老年人和儿童在应用抗菌药物时,最安全的品种是( )

耐甲氧西林的葡萄球菌(mrsa)的治疗应选用( )

抗菌药物分类管理是为了

简述抗菌药物合理使用的重要性?如何做到合理使用抗菌药物?

结核病最主要的传播途径是

诊断结核病的金标准是

世界结核日是

关于结核病的传染性,下面说确的是

肺结核病人最常见的症状是

怎样预防结核病

下列关于狂犬病描述正确的选项是

ii类暴露后,最正确的处理措施是

布鲁菌病被我国《防治法》列为()类

下列关于布鲁菌病的说法错误的是()

引起猫抓病的病原体为下列哪一项

在我们的生活中,还有哪些宠物可以引起哪些疾病

下列有关流感重症高危人群的表述错误的是

流感的预防措施中下列哪项是错误的

流行性感冒的临床表现,下列不符合的是

下列有关流感预防的表述错误的是

下列有关流感抗病毒治疗的表述错误的是

流感的治疗原则是什么?

可引起食源性寄生虫病的寄生虫不包括以下哪一种?

以下哪种行为最有可能会感染肝吸虫

以下哪一项对弓形虫的描述错误?

包虫病是由什么导致的?

包虫病主要流行区不包括以下哪个地区

请简述弓形虫病的类型和临床表现。

下列关于幽门螺杆菌的描述,不正确的是

下列关于幽门螺杆菌感染的检测,描述不正确的是

下列关于幽门螺杆菌的治疗,正确的是

下列关于幽门螺杆菌抗生素耐药,正确的是

下列关于幽门螺杆菌根除治疗过程中的注意事项,正确的是

请简要描述幽门螺杆菌感染的诊断和治疗

以下细菌属于病原菌的是

以下不属于常见的人体微生态系统的是

肠道微生物的生理作用不包括

关于肠道微生态与健康的联系错误的是

关于微生态治疗的方确的是

手足口病传播途径不包括

手足口病的治疗不包括

手足口病哪个年龄组发病率高

手足口病属于《防治法》中的哪类?

手足口病患儿出现口腔及手足大量密集疱疹,伴有38.5度发热,无其他特殊不适,应考虑诊断患儿

简要回答手足口病的临床分期及各期的临床表现

属于乙型肝炎传播途径的是

下列hbv感染标志物中能直接表示hbv复制水平的是

35岁女性,手术后二个月出现腹胀,乏力,alt200u/l,手术时输血800ml,化验hav igm(-),hbsag(-),抗hbc( ),抗hbs( ),抗hcv( ),诊断应考虑

适用于、慢性乙型肝炎和慢性丙型肝炎等经血液或体液传播的的隔离方法是

hiv感染患者损害最重要的系统是

引起患者死亡的原因包括

hiv/aids的诊断包括

hiv/aids最根本的治疗

hiv/aids治疗有效的标准包括:

正确的抗菌治疗方案需考虑:

引起医院内感染的致病菌主要是:

妊娠期可以选用的抗菌药物有

结核病最主要的传播途径是

下列哪种动物不引发狂犬病

布鲁菌病的主要表现不包括

下列有关流感重症高危人群的表述错误的是

流感的预防措施中下列哪项是错误的

流行性感冒的临床表现,下列不符合的是

下列有关流感预防的表述错误的是

下列有关流感抗病毒治疗的表述错误的是

下列关于幽门螺杆菌的描述,不正确的是

我国目前关于幽门螺杆菌的治疗,正确的是

下列哪种药物不是用于治疗真菌感染的

下面哪种病毒不能引起手足口病?

手足口病的治疗不包括:

以下哪项不能有效灭活新冠肺炎病毒?

以下哪一项不是新型冠状病毒的传播途径?

以下哪个样本可以检测到新型冠状病毒?

医护人员手部卫生的时间是什么时候?

关于新型冠状病毒的特征以下错误的是?
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