这是美国军事学院教材里写的。我这里有ROTC，图书馆里有这书。

来源: borisg 于 2020-12-29 09:50:09 [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.