打开App
360P
竞赛解方程：17a+20b+21c=233，方法真绝，你能想到吗
初中数学竞赛真题62/425
App06:53
App05:44
App06:34
App06:42
App05:02
App05:06
App03:24
App05:29
App05:22
App05:57
App05:06
App05:53
App03:32
App05:13
App05:20![竞赛解方程：x [x] = 999，这该怎么解？](http://p3-sign.bdxiguaimg.com/tos-cn-i-0026/66461990984b4b4885674459e17d3a89~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409272050084E85EFD29C6213180E2B&requestFrom=704&version_code=80402&x-expires=1758977409&x-signature=kLWu6ta0R30MCNdtzspU5%2FLKDR8%3D)
App07:58
App05:14
App05:52
App04:32
App03:48
App03:23
App06:48
App05:13
App06:22
App06:14
App03:33
App06:08
App04:09
App06:36
App05:03
App05:43打开App观看
