差不多 7，-8分钟吧，如果没有经验可以先自己尝一下，

来源: europe 于 2011-11-18 13:22:27 [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.