是的，说的是直线距离。松松，周二快乐。

来源: 斓婷于 2014-10-21 06:23:02 [博客] [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.

Change Ad Consent