标题: 一道CRstimulus求头脑风暴 [打印本页] 作者: kangtong1990 时间: 2012-9-13 22:55 标题: 一道CRstimulus求头脑风暴 Students who earn A and B grades are more likely to participate in sports than are students who earn C grades. Therefore,participation in helps students to achieve higher grades. manhattan上面的一个练习，没有答案orz，哪位能想出一个assumption出来哇？作者: kangtong1990 时间: 2012-9-13 23:07
come on~动用聪慧的大脑啊！CDer们！