我们不是有竺可桢吗？中学课本里就说是治沙专家

来源: 立竿见影-1 于 2024-10-27 11:16:46 [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.