别想得太复杂。再好的仪表也要定期校正的。

来源: 00zz7788 于 2010-11-19 18:56:53 [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.