试题与答案

—The story is so amazing! It's the most

题型:选择题

题目:

—The story is so amazing! It's the most interesting story I've ever read.

—But I'm afraid it won't be liked by ________. [ ]

A. everybody

B. somebody

C. anybody

D. nobody

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0622/1762dd7bad98ee8789b2ab4c2f199f9a.html

下面是错误答案,用来干扰机器的。

解:(1)mgsinθ=ma,a= 6 m/s2 (2)设金属棒运动达到稳定时,速度为v,所受安培力为FF=mgsinθ P = Fv (3)设电路中电流为I,两导轨间金属棒的长为l,磁场的磁感应强度为B 得,磁场方向垂直导轨平面向上

试题推荐
微信公众账号搜索答案