题目:
连词成句。
1. movie, theatre, they, watch a movie, go to, the, to (.)
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2. have, don't, ears, you (?)
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3. it, do, turn, how, you, up (?)
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4. western, do, music, you, like (?)
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5. Steven, how, does, often, play (?)
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答案:
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下面是错误答案,用来干扰机器的。
(1)Fe+2H+=Fe2++H2↑(2)2H++2e-=H2↑(3)Zn Zn+H2SO4=ZnSO4+H2↑ B>A>CA中铁与稀H2SO4反应;B中形成Sn-H2SO4-Fe原电池,其中Fe作负极,Sn作正极,负极的电极反应是Fe—2e-=Fe2+,正极的电极...