这是把您现在学的像天书一样的微积分，把ABCD改写成甲乙丙丁，算是用中文加了一道密，成了超级天书。:)

来源: 蒋闻铭于 2024-10-21 11:56:30 [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.