他应该先搞清楚什么因素引起那个倒L 曲线，再用这些因素作为衡量指标来比较东西方。

来源: QualityWithoutName 于 2024-06-13 14:48:10 [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.