Because C knows those who are admitted to SHP will not enroll in

来源: Yangtze430030 2013-11-11 12:39:18 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (130 bytes)
Because C knows those who are admitted to SHP will not enroll in C.  C is avoiding direct competetion and protects its yield.
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