【題目】室溫下,單質(zhì)A、B、C分別為固體、黃綠色氣體、無色氣體,在合適反應(yīng)條件下,它們可按下面框圖進行反應(yīng)。又知E溶液是無色的。
請回答:
(1)A是________,B是________,C是________(填化學式)。
(2)反應(yīng)①的化學方程式為____________________________。
(3)反應(yīng)③的化學方程式為____________________________。
(4)反應(yīng)④的化學方程式為______________________。
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【題目】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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【題目】已知A是一種裝飾品的主要成分,根據(jù)如圖轉(zhuǎn)化關(guān)系,回答下列問題。
(1)A的用途為________(任寫一種),B是________,D是________。
(2)寫出化學方程式:
①________________________________________。
④________________________________________。
(3)寫出離子方程式:
②___________________________________________。
③___________________________________________。
⑤___________________________________________。
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【題目】――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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【題目】(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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【題目】 (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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【題目】 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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【題目】__________ that they found the long lost sword of the Ming Dynasty. (be)
就是在這個湖里,他們發(fā)現(xiàn)了失蹤已久的明代寶劍。
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