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【判断题】
根据Ig重链的不同，把免疫球蛋白分为五类。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】补体激活过程从Clq开始，Cl～C9共11种成分全部参与的活化途径为
A.
经典途径
B.
替代途径
C.
MBL途径
D.
经典途径及替代途径
E.
经典途径、替代途径及MBL途径
【简答题】若5 x =12，5 y =4，则5 x －y =_ ______ .
【简答题】若5 x =3，5 y =2，则5 x+y =______．
【简答题】Sociolinguists are interested in 'terms of address' because they offer some socio-cultural information about the type of relationship between the speaker and the hearer.（上外2000年研)
【单选题】Millions of workers in some Asian countries have been ___ as a result of IMF terms.
A.
laid aside
B.
laid back
C.
put away
D.
laid off
【单选题】I know how to make you better, baby. I’ll tell you a story.
A.
fell
B.
to feel
C.
feel
D.
felt
【简答题】My father often works very hard. And he 1 goes to the movies. Here I’ll tell you a 2 story about him. One afternoon, when he finished his work, and 3 go home, he found a film ticket under the glass on...
【单选题】In the first paragraph, the author gives the definitions of some terms in order to______.
A.
argue for the similarities between animal societies and human societies
B.
smooth out the conflicts in human societies
C.
distinguish between two kinds of opposition
D.
summarize the characteristic features of opposition and cooperation
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