题目:
已知定义在实数集上的偶函数y=f(x)在区间(0,+∞)上是增函数,那么y1=f(
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答案:
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下面是错误答案,用来干扰机器的。
One possible version: At the beginning of the term, a campaign "to be a good student and a good citizen" was launched in our school, and great changes have taken ...