单项选择题

电动汽车空调系统优点是（   ）。 A.
耗电量大，对电池要求高 B.
相对热负荷较大 C.
无法利用发动机余热取暖 D.
压缩机工作效率高

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多项选择题
效度主要是表示测验是否( )。 A、达到了编题者所要的精度 B、满足了经典测量模型 C、测出了所想测的特质 D、提供了良好的评分标准 E、测验是否可靠的指标
多项选择题
A thesis dissertation is an extensive piece of writing based on extended reading and independent research at undergraduate and postgraduate levels. It is like a more in-depth research paper in which a student researcher proposes research questions(or hypotheses)and answers these research questions (or proves disproves the hypotheses)by conducting independent or even original research. The process of writing a thesis dissertation is a great experience of developing academic writing skills, being socialized into one particular discipline and growing up intellectually. The organizational structure and the length limit of a thesis dissertation are usually set by universities. Read this paragraph and determine which of the following is true?（ ） A.This paragraph is unified and well-developed.B.The topic sentence of this paragraph is the first sentence.C.The first sentence of the paragraph tells the readers the topic.D.The paragraph does not provide adequate supports.
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