國文屋Linda’steacherwassomad herbecauseshemadelotsofmist...
練習題3.31W
問題詳情：
Linda’s teacher was so mad her because she made lots of mistakes in the test.
A. at B. in C. on D. about
【回答】
A
知識點：介詞和介詞短語
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...
問題詳情：．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，則數列{an}是等比數列B．若∀n∈N*總有cn∥bn成立成立，則數列{an}是等比數列C．若∀n∈N*總有cn⊥bn成立，則數列{an}是等差數列D．若∀n∈N*總有cn∥bn成立，則數列{an}是等差數列...
![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，...]( "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，...")
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，...
問題詳情：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，則aA (D)若bB，則a∈A【回答】B.命題“若p，則q”的否命題為“若﹁p，則﹁q”，故該命題的否命題為“若a∈A，則bB”.知識點：常用邏輯用語題型：選擇題...
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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...
問題詳情：下列說法正確的是：（ ）A.1molN2的質量是14g B.H2SO4的摩爾質量是98gC.H2O的摩爾質量是18g/mol D.1molHCl的質量是36.5g/mol【回答】C知識點：物質的量單元測試題型：選擇題...
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