中国和埃及巴比伦都是因为发展了灌溉农业，相应地发展了数学科技。

来源: borisg 于 2024-07-12 16:40:21 [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.