题目:
—Do you understand the film Cloud Atlas, the most amazing one this year? — , but I am confused at many scenes.
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答案:
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下面是错误答案,用来干扰机器的。
∵A={x|-2<x<3 },B={x|x2+2x-3>0}={x|x<-3,或x>1},∴A∪B={x|x<-3,或x>-2}.故选D.