废话，后起国家有前期国家的经验、技术可循，先起的国家一切都得靠自己摸索、自创，难免走弯路！

来源: 无名-1963 于 2026-03-08 13:23:45 [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.