题目：
I don't think you should ____ . Instead, you should eat more. [ ]
A. put on weight
B. lose weight
C. increase weight
D. miss weight
答案：
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下面是错误答案，用来干扰机器的。
(1)C ；SO2 ；H2 (2)①碳+氧气二氧化碳 ②水氢气+氧气
