←
Back
🏠
Home
参加数学竞赛的同学共有13名,老师不用调查就能做出判断,至少有2名同学的生日在同一月份。你知道为什么吗?
Loading Player...
📋
Info
💬
AI Explanation
📝
Subtitles
Downloads
⬇️ Download Video (MP4)
Cover URL
https://jieti11.oss-cn-hangzhou.aliyuncs.com/video/cover/569573460044828673.png
Copy