Whenaskedtoexplain hedidtomakehisstudentssofasci...
練習題2.51W
問題詳情:
When asked to explain he did to make his students so fascinated with his lessons the teacher paused and thought deeply.
A. what it was that B. that what it was
C. what was it that D. that what was it
【回答】
A
知識點:強調句
題型:選擇題
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下列化學用語正確的是A.CH4分子的球棍模型: B.乙烯的結構簡式:CH2CH2 C.*...
問題詳情:下列化學用語正確的是A.CH4分子的球棍模型: B.乙烯的結構簡式:CH2CH2 C.*化*的分子式:NaCl D.K+的結構示意圖:【回答】A知識點:物質結構元素週期律題型: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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下列化學用語表達正確的是( )A.羥基的電子式 B.乙烯的結構簡式是CH2CH2C.醛基的結...
問題詳情:下列化學用語表達正確的是()A.羥基的電子式 B.乙烯的結構簡式是CH2CH2C.醛基的結構簡式是—COH D.澱粉的分子式是(C6H10O5)n【回答】D知識點:糖類油脂蛋白質單元測試題型:選擇題...
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我國現存最早的數學名著是A.《九章算術》 B.《綴術》 C.《大明曆》 ...
問題詳情:我國現存最早的數學名著是A.《九章算術》 B.《綴術》 C.《大明曆》 D.《水經注》【回答】A知識點:大河流域人類文明的搖籃題型:選擇題...
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