【题目】室温下,单质A、B、C分别为固体、黄绿色气体、无色气体,在合适反应条件下,它们可按下面框图进行反应。又知E溶液是无色的。
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请回答:
(1)A是________,B是________,C是________(填化学式)。
(2)反应①的化学方程式为____________________________。
(3)反应③的化学方程式为____________________________。
(4)反应④的化学方程式为______________________。
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【题目】He seems to be giving the impression that he didn't enjoy himself in Paris. ___, he had a wonderful l time.
A. Above all
B. what’s more
C. As a result
D. On the contrary
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【题目】已知A是一种装饰品的主要成分,根据如图转化关系,回答下列问题。
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(1)A的用途为________(任写一种),B是________,D是________。
(2)写出化学方程式:
①________________________________________。
④________________________________________。
(3)写出离子方程式:
②___________________________________________。
③___________________________________________。
⑤___________________________________________。
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【题目】――Look! Somebody ____the sofa..
――Well, it wasn’t me. I didn’t do it.
A. is cleaning
B. was cleaning
C. has cleaned
D. had cleaned
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【题目】(2014·江西) Anyway, we’re here now, so let’s _________ some serious work.
A. come up with B. get down to
C. do away with D. live up to
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【题目】 (2014·北京)The film star wears sunglasses. Therefore, he can go shopping without __________.
A. recognizing B. being recognized
C. having recognized D. having been recognized
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【题目】 The film was so moving that we all burst into tears. Never before seen a film like that.
A. had I B. I had
C. have I D. I have
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【题目】__________ that they found the long lost sword of the Ming Dynasty. (be)
就是在这个湖里,他们发现了失踪已久的明代宝剑。
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