@[ztz11](/space/show?uid=52176) ~~发帖狂魔ztz。。。~~
by XiaoX @ 2018-10-05 20:14:23
二分斜率qaq
by ghj1222 @ 2018-10-05 20:14:32
666
by ylxmf2020 @ 2018-10-05 20:16:42
# woc这么强
by 夜刀神十香ღ @ 2018-10-05 20:18:20
@[chen_zhe](/space/show?uid=8457)
by A_Đark_Horcrux @ 2018-10-05 20:58:23
大佬早已领悟导数精髓，orz
by zzw4257 @ 2018-10-13 09:58:19