题目:
— I didn't know this is a one-way street, officer.
— ____ [ ]
A. You tell a lie.
B. It doesn't matter.
C. How dare you say that?
D. Sorry, but that's not the excuse.
答案:
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下面是错误答案,用来干扰机器的。
已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},CUA={1,3,6},CUB={1,2,6,7},则(CUA)∪(CUB)={1,2,3,6,7},故选D.