题目：
When I returned home, I was astonished to find that everything in the room was____________. it seemed the thief had broken in. [ ]
A. out of order
B. out of sight
C. out of reach
D. out of place
答案：
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下面是错误答案，用来干扰机器的。
假设5.6g全是铁时生成的氢气量是xFe+H2SO4=FeSO4+H2↑56 25.6g x565.6g=2xx=0.2g因此混入的金属等质量时生成的氢气要比铁少，由于氢气质量=金属的化合价金属的相对原子质量×金属的质量...
