When Japanese scientists invented the self-timer function on cameras in 1978, they never could have imagined just how popular it would be 30 years later. Currently, millions of young Chinese use the feature to take photos of themselves and post them online for the world to see. Websites such...
how photographers aid scientistsD. George Eastman invented the firstcamera 答案 V.1.C 2.B 3.A 4.C 5.D相关推荐 1V.阅读理解。(共10分,每小题2分)When were the cameras invente 1.Let^9sg0into the past. In the 1500s, men made experiments试验)on cameras that made images. But itwas ...
With the help of photographers, scientists can take pictures through microscopes and telescopes. Deep-sea divers take pictures of ocean plants and animals, while astronauts take their cameras into space.”可知,在摄影师的帮助下,科学家们可以通过显微镜和望远镜拍摄照片、深海潜水员能拍摄海洋植物和动物的...
题目When was the first computer invented? A. In the 1940s. B. By scientists. C. In a factory. D. For calculation. 相关知识点: 试题来源: 解析 A。题干问第一台电脑什么时候发明,选项 B 是被谁发明,选项 C 是地点,选项 D 是用途,只有选项 A 二十世纪四十年代是时间,符合要求。
When the first computer was invented in the 1940s, scientists ___ for a long time on this revolutionary technology. A. had been working B. were working C. have been working D. worked 相关知识点: 试题来源: 解析 A。本题考查过去完成进行时。在 20 世纪 40 年代第一台计算机被发明的时候,...
初三英语 Unit 6 When was it invented学案 Unit 6 When was it invented四会词汇section Aelectricity电 电能electric 以电为动力的electrical 和电有关
( )6.Thescientistsgavemicedrugsintheirexperimentto . A.findwhatreducestherunner?shighsymptoms B.seethespecificsymptomsoftherunner?shigh C.identifywhatisresponsiblefortherunner?shigh D.testwhatinfluencesthelevelofendocannabinoidsreleased ( )7.Theunderlinedword“notion”inParagraph7hastheclosestmeaningto“ ”...
11. were 12. for 13. making 14. but 15.the 五.补全对话。 A: Tina, have you heard the news on TV about Chang'e Ⅲ? B: Yes, I have. Chinese scientists are so great that they developed it in such short time, and have succeeded in 9 word 可编辑文档 launching. A:...
14. Many teenagers___the scientists like Yuan Longping and hope to be like them. 15. Why don't we have a discussion and___a better plan 16. Two teams reached the finishing line___ in the race. 17. Li Hua lives a green life and he often___waste___different groups for recycling....
Unit 6 When was it invented (时间:120分钟 分值:120分)一、听力理解(每小题1分,共20分)A)请听下面5段对话。每段对话后有一小题,从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你都将有10秒钟的时间回答有关小题和阅读下一小题。每段对话读两遍。( )1.When were the cars inven...