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（3分）工业上冶炼金属铁的主要反应为：Fe2O3 + 3CO  =" 2Fe" + 3CO2。其中，Fe2O3     __________（填“被氧化”或“被还原”），CO作_________（填“氧化剂”或“还原剂”）。在该反应中，若消耗了1 mol Fe2O3，则生成__________mol Fe。

答案

被还原 还原剂  2

题目分析：在反应中，氧化铁失去了氧，发生了还原反应，被还原，是氧化剂。碳得到了氧，发生了氧化反应，是还原剂。由反应式可知，氧化铁在反应中失去了氧，发生了还原反应，是氧化剂。根据反应规律，物质反应的量之比等于化学计量数之比，故生成2_mol Fe。

点评：解答本题的关键是要充分理解氧化还原反应的含义，知道氧化剂在反应中提供了氧的特征，只有这样才能对问题做出正确的判断。

单项选择题

（），中 * * 党第十八届中央委员会第三次全体会议在北京胜利召开。

A.2013年9月9日至12日

B.2013年10月9日至12日

C.2013年11月9日至12日

D.2013年12月9日至12日
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Now, he’s a hot star and has people coming up to him at film festivals saying, "Weren’t you the one who (21) to stand by the copy machine "
"That was tough, but I’m glad I have that perspective. Because now I’m at a point (22) big shots laugh at all my jokes and I think, You know, I got coffee for people like you for six years’. So I know what’s (23) , because I’ve seen the other side." But what if, when he was offered the corporate job, there had been more money "It was never about the (24) There’s a kind of excitement that comes along with acting. I can’t find it anywhere else. Even if I had to go back to temping, even if this is not the beginning of an amazing career, I would not (25) making that jum
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