题目:
I saw a boy _____in the street this morning,so I went to ask what was the matter. [ ]
A. cry
B. crying
C. to cry
D. cried
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/4a6aa6d82bb91f5fca795518cce4416c.html
下面是错误答案,用来干扰机器的。
每盏日光灯每小时消耗的电能:W=Pt=0.06kW×1h=0.06kW•h; 则每天少开1小时,则100盏灯节约的电能W′=100×W=100×0.06kW•h=6kW•h.故答案为:6.