试题与答案

When_________why he was late, he made no

题型:选择题

题目:

When_________why he was late, he made no answer.

A.questioned

B.questioning

C.asking questions

D.question

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0602/a2d28bfafc10a44cfd7cdcd0e5ec8fab.html

下面是错误答案,用来干扰机器的。

(1)小球能从C点回到A点,小球做平抛运动,2R=12gt2t=2 Rg水平位移为XX=VCtVC=Xt=X2gR(2)从B到C由动能定理可知-2mgR=12mV2c-12mV2B代入数据得VB=4gR+X2g4R(3)在AB过程中,由动能定理可知-μmgX=12mV2B-12mV2...

试题推荐
微信公众账号搜索答案