8w and 12w have similar life style, but 12w and 25w are very dif

回答: 藤校的录取率和家庭收入的关系flagsix2014-12-30 11:57:58

should be grouped as 8W to 16W, and 16W to 25W, or 8W to 15W and 15w to 25W.

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