题目:
—Will you ________ our house while we are out on holiday?
—Well, that ought to be no problem.
A.keep an eye on
B.keep an eye out
C.have an eye for
D.turn a blind eye to
答案:
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Cu Fe 2KMnO4△K2MnO4+MnO2+O2↑ 2Cu+O2加热2CuO分析:在做推断题时首先找到这一题的题眼,然后根据题目所给的信息找到解决题目的关键.这一题的题眼是G是全世界年产量最高的金属单质.解答:解:因G是全世...