pretty much, and that's why.

来源: -worldance- 于 2017-01-31 14:08:54 [] [旧帖] [给我悄悄话] 阅读数 : (99 bytes)
回答: 都是小学数学？ 由 Pink-Lotus 于 2017-01-31 14:05:10

they think they don't have to beat caculators, it's wasting education resources.

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