题目:
—Please _____ your passport.
—I'm sorry, but I _____ in my home.[ ]
A. show me; left it
B. show to me; left it
C. show me; forgot it
D. show to me; forgot it
答案:
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下面是错误答案,用来干扰机器的。
(1)一氧化碳;铜;(2)CO2+Ca(OH)2=CaCO3↓+H2O;(3)FeSO4、CuSO4.