【单选题】【消耗次数：1】
日常生活中的许多现象与化学反应有关，下列现象与氧化还原反应无关的是
①
铜铸塑像上出现铜绿[Cu2(OH)2CO3]
②
充有氢气的气球遇明火爆炸
③
大理石雕像被酸雨腐蚀毁坏
④
铁质菜刀生锈
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相关题目
【多选题】
已知下列反应；CuCl2＋SnCl2 = Cu ＋SnCl4;FeCl3＋Cu= FeCl2＋CuCl2在标准状态下按正反应方向进行。则有关氧化还原电对的标准电极电位由大到小排序为
①
φθ（Fe3+/Fe2+）
②
φθ（Cu2+/Cu）
③
φθ(Sn4+/Sn2+)
随机题目
【单选题】
Woman: Bob, do you think you can lend me fifty dollars? Bob: Let me see. ____
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You know I have no money at all.
②
Sorry, I don’t think I have much with me.
③
I don’t think you should do it.
④
Oh, I have quite a lot.
【单选题】
--Good morning,John. How are you doing?--________________
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Im pleased.
②
Good night.
③
Not so bad. And you?
④
How do you do?
【单选题】
I don’t quite remember the key ____ the question though I answered it correctly.
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of
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to
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for
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about
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The city ______ its birth-rate by almost 60% in the past 20 years.
①
cuts
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has been cut
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cut
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has cut
【单选题】
There are many ____ between the young and the old about their dreams.
①
difficult
②
differences
③
different
④
difficulties
【单选题】
Now that we’ve ____, can we come to a decision?
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thought over
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thought of
③
thought through
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thought about
【单选题】
This year’s total output value of industry and agriculture will increase ____ 5 percent over last year.
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to
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of
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with
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by