猫崎暁 2020-11-26T16:36:45+00:00 [img]https://img.nga.178.com/attachments/mon_202011/26/-7Q5-6xwpKwT3cSsg-5u.jpg.medium.jpg[/img]本来着中学物理禁用微积分，不过，哎，能有个答案就行