【多选题】look at text b in unit 1. make predictions about the following questions by using the reading skill of previewing. which of the following topics may be discussed in more detail in the text?
核外主量子数n = 3的原子轨道共有( )。
【多选题】what are the variations of the pattern?
【判断题】a report can be ided into three parts: the first one is introduction, the second is the main body and the last one is conclusion.
【填空题】fill in the blanks with the words given below. change the form where necessary. each word can be used only once. explore yield pose confidence inherit there is widespread concern that the rising unemployment may ______ a threat to social stability.
【判断题】a survey report is a formal piece of writing based on research.
【填空题】__________ essay is a way to organize your essay by using a variety of examples.
【单选题】in the body paragraph, _______ is used to tell the reader what each paragraph will cover.
【填空题】fill in the blanks with the words given below. change the form where necessary. each word can be used only once. explore yield pose confidence inherit sam ______ the gift of imagination from his family, but he lacked the driving power to take action.