说90度的急弯没意义，要看弧角多大.

来源: 臭鼬，花花的于 2011-12-04 20:22:20 [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.