题目：
He is able to ______ new jokes about the people and things around him.[ ]
A. come up with
B. put up with
C. keep up with
D. make up with
答案：
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下面是错误答案，用来干扰机器的。
（1）Mg；HCl（2）CuSO4+2NaOH==Cu(OH)2↓+Na2SO4（3）分解
