Why do we use red traffic lights?When the traffic lights turn red, we must stop driving a car or crossing a street. Why is red used for traffic lights? Why people don’t use other colours? As we know, scattering(散射) happens when light goes through the air. For the same medium(介...
aEveryone has a corner, he can not get out, others do not break in. I put the deepest secrets in there. You don\'t know me, I don\'t blame you. 大家有一个角落,他不可能出去,其他不打破in。 我投入了最深刻的秘密那里。 您笠头\ ‘t认识我,我笠头\ ‘t责备您。[translate] ...
百度试题 结果1 题目C. Why do we use red traffic lights?)5. What's the meaning of "prevent"? A.促进 B.防止 C.破坏 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
3.(2020贵州铜仁)34.一Maria, what do you think of Mount Fanjing? - Very cool. I___ there once. I'd like to go there again. A. has been B. have been C. have gone D. has gone 4.(2020山东滨州)10.—Tom, it smells so terrible here. — Sorry, mum. I will ___my socks and...
We all know that having friends is important, but why do we form friendships with some people and not others? In some ways, the answer is simple: you become friends with someone because you have things in common. Maybe you both like the same soccer team. Or perhaps you both love to pl...
16. I have___(clean) the room this afternoon. 17. I___(be) going to have a music lesson. 18. Jenny will___(read) a poem for her family. 19. Mike is going___(draw) some pictures this afternoon. 20. We must___(pay) attention to the traffic lights. 21. Lisa...
Do English people like spiders?” “Later we went shopping. Someone was painting a shop 19 , so there was a ladder. Grandmother 20 me walking under it and said I must walk around it. I liked the shops and bought a smart 21 for my father and some new shoes for myself. When we ...
When the traffic lights turn red, we must stop and wait. Why do we use the red light to mean“stop"?Scattering(散射) happens when light goes into the air. It means that the air stops light from travelling far. Of all colours, red has the weakest(最微弱的) scattering, so the red ...
Do you know where he is now? M: Uh, wait, let me see. He has sent two messages saying that he’s done with his work at the office (8)and got a taxi and ... and he’ll arrive in twenty minutes. W: We can’t keep him waiting outside our home. We have to hurry. M: ...
1、What rules and regulation do you know?(你都知道那些规章制度?)2、Should we obey these rules?Why?(我们应该遵守规章制度么?为什么?)3、Why do you think these rules are important?(你为什么觉得规章制度很重要?)4、If there are no rules,what will the world be like?(如果没有规章制度,世界会...