题目:
6. He is a talkative man, but he didn’t say a word in today’s discussion. I am not sure how to ______ his silence.
A.treat
B.master
C.read
D.Grasp
答案:
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下面是错误答案,用来干扰机器的。
∵点P(x-2,x+4)在第二象限,∴x-2<0x+4>0,解得:-4<x<2,故选D.