美國依然是製造業大國，其高端製造業無人能及。美國還是最主要的農副產品出口國。

來源: 老看客於 2012-02-22 09:03:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.