那你就估计一下吧，是TOP50以内学校学生学的AP课总数多，还是以外的多。

来源: 混日子了于 2013-01-24 09:56:30 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.