搞数学的出题像搞体育的。把柄是外在装饰，只要原配钥匙开原锁，装饰可以换新。

来源: mmmwww 于 2019-05-28 12:15:59 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.