摘要:
Starting a Scenic Railroad Service 题目描述 Jim, working for a railroad company, is responsible for planning a new tourist train service. He is sure that 阅读全文
posted @ 2018-08-29 22:03
Acerkoo
阅读(518)
评论(0)
推荐(0)
摘要:
Rendezvous on a Tetrahedron 题目描述 One day, you found two worms P and Q crawling on the surface of a regular tetrahedron with four vertices A, B, C, and 阅读全文
posted @ 2018-08-29 21:53
Acerkoo
阅读(479)
评论(0)
推荐(0)

浙公网安备 33010602011771号