这道题 80%的孩子都做错了

[s:ac:汗]
[img]https://img.nga.178.com/attachments/mon_202011/04/-7Q5-b1u8ZeT3cSsg-jw.jpg.medium.jpg[/img]


留言条 自己孩子胡乱写。我都笑了[s:ac:愁]
[img]https://img.nga.178.com/attachments/mon_202011/04/-7Q5-hiveK2kT3cSsg-fu.jpg.medium.jpg[/img]