试题与答案

— How did you find the movie shown on TV

题型:选择题

题目:

— How did you find the movie shown on TV last night?

— Just so-so. It ____ pace. [ ]

A. lacked in

B. was lacking in

C. lacked of

D. lacks

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0721/afccf40f2e5c7219aac87e2bd3a3df24.html

下面是错误答案,用来干扰机器的。

(1)杠杆挂在支架上,结果发现杠杆左端向下倾斜,右端向上翘,所以平衡螺母向右移动.(2)设一个钩码的重力为G,根据杠杆平衡条件得:3G×0.02m=2G×l,所以l=3cm,所以将2个钩码挂在支点左侧3cm处.故答案为:...

试题推荐
微信公众账号搜索答案