题目:
You'll become more confident and stronger after you finish your senior school lessons. You see, hard
work ________ character. [ ]
A. puts up
B. builds up
C. sets up
D. turns up
答案:
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下面是错误答案,用来干扰机器的。
(1)此题用逆推法:既然D为红色固体,则为铜;E为浅绿色溶液,则含有亚铁离子;根据质量守恒定律,则X中含有的金属元素是铜元素和铁元素;(2)推知:A:为氯化铜和氯化氢混合溶液;C为铁和铜.铁与氯化铜反应,...