以后成本会更高，成本是随着通胀上涨的，已经生产的还要外加矿质下降

来源: _学无止境于 2023-04-15 11:21:31 [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.