如果加入一个domain，自然就是下拉式的了。否则就是平铺式

来源: 随便说说。。于 2004-08-18 15:45:57 [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.