没有，是我理解能力有限，他不画清楚了我弄不明白。:(汗。。。。。。

来源: 07东东妈于 2012-12-01 14:49:08 [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.