嗯，当务之急应该重新把课本吃透。怎么吃透？具体做法应该是复习教科书，重做学校的问题集和print吧？

来源: tinghaiba 于 2019-08-19 07:55:18 [旧帖] [给我悄悄话] 本文已被阅读：次

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