Proof, precisely a evaluation

[GeorgeKat]

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http://ezproxy.cityu.edu.hk/login?url=h ... rgan-20149
https://bbs.pku.edu.cn/v2/jump-to.php?u ... -two-59412
https://bbs.pku.edu.cn/v2/jump-to.php?u ... -day-17482
https://bbs.pku.edu.cn/v2/jump-to.php?u ... er-9-70279
https://bbs.pku.edu.cn/v2/jump-to.php?u ... onal-64162
http://ezproxy.cityu.edu.hk/login?url=h ... aven-74927
https://bbs.pku.edu.cn/v2/jump-to.php?u ... rt-2-13251
http://ezproxy.cityu.edu.hk/login?url=h ... riya-50410
http://ezproxy.cityu.edu.hk/login?url=h ... show-45493
https://bbs.pku.edu.cn/v2/jump-to.php?u ... room-32422