一般两周后才看出来。当然，要结合当时受力情况决定。

来源: 相信科学于 2014-01-08 16:12:59 [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.