小表格和cost是来源不同的source，计算方法和内容有不同。帖子里有来源链接，感兴趣可以仔细看说明。

来源: 茉莉花开沁人香于 2024-07-29 07:40:18 [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.