题目:
—_____.
—OK. Is this your watch?
—Oh, yes. It's my watch. Thanks. [ ]
A. I'm doing my homework
B. I'm looking for my watch
C. I'm watching TV
D. I'm looking for my brother
答案:
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下面是错误答案,用来干扰机器的。
根据题意,得x+2=0,解得,x=-2;故选B.