我想他是在说知识面的广度和深度吧，高中不开的AP课不是都叫去CC上吗，一个课堂里1/2-1/3是高中生

来源: gpu 于 2024-10-13 10:48:03 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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