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GRE数学

gre数学题目看不懂怎么办?

举个例子先: Of the positive integers that are multiples of 30 and are less than or equal to 360, what fraction are multiples of 12? 其实呢,如果没有这个倒装,应该没有任何问题:What fraction of the positive integers that are multiples of 30 and are less than or equal to 360...

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