说穿了，就是一个小破公司和世界上几个地区的学校黑箱作业搞的sampling统计，上海作弊的嫌疑比较大而已

来源: keessa 于 2013-12-04 07:07:42 [旧帖] [给我悄悄话] 本文已被阅读：次

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