还没有登录哦!

[Problem Solving]

试题详情

题目:

A train of length l, traveling at a constant velocity, passes a pole in t seconds. If the same train traveling at the same velocity passes a platform in 3t seconds, then the length of the platform is 

选项:

A、0.5l
B、l
C、1.5l
D、2l
E、3l

答案:

D

提问:

NEW PS

解答:

点赞0
阅读584
解答: sysadmin

提问:

NEW PS

解答:

点赞0
阅读585
解答: sysadmin老师

问个问题

点我领取
免费专项课程
在线咨询