國文屋-Lookatthatgirlunderthetree.IsitAnn?-It
問題詳情：
-Look at that girl under the tree. Is it Ann?
-It ______ be Ann. She is reading in the library now.
A. can B. can’t C. must D. mustn’t
【回答】
B
知識點：情態動詞
題型：選擇題
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_____theyaremostinterestedinis______theycanproducemorea...
問題詳情：_____theyaremostinterestedinis______theycanproducemoreandbettercars.;how ;how ;what ;that【回答】B知識點：連詞題型：選擇題...
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．已知各項均不為零的數列{an}，定義向量．下列命題中真命題是（ ）A．若∀n∈N*總有cn⊥bn成立，則數...
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命題“若aA，則b∈B”的否命題是( )(A)若aA，則bB (B)若a∈A，則bB(C)若b∈B，...
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下列說法正確的是：（ ）A.1molN2的質量是14g B.H2SO4的摩爾質量是98gC.H...
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