首页
登录
职称英语
[originaltext] In earliest times, men considered lightning to be one of the g
[originaltext] In earliest times, men considered lightning to be one of the g
游客
2023-07-30
93
管理
问题
In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient people believed that lightning and thunder were the weapons of the gods. In reality, lightning is a flow of electricity formed high above the earth.
The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning rod. This device protects buildings from damage by lightning.
Scientists estimate that there are about 2 billion flashes of lightning per year. Lightning hits the Empire State Building in New York City 30 to 48 times a year. In the United States alone it kills an average of one person every day.
The safest place to be in case of an electrical storm is in a closed car. Outside, one should go to low ground and should not get under trees. Also, one should stay out of water and away from metal fences. Inside a house, people should avoid open doorways and windows and should net touch wires or metal things.
选项
A、A swimming pool.
B、A high ground.
C、Under a tree.
D、A closed car.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2883277.html
相关试题推荐
[originaltext]W:I’mtiredofwatchingtelevision.Let’sgotothemoviestoni
【B1】[br]【B11】[originaltext]Beforethe1850’s,theUnitedStateshadanumber
【B1】[br]【B10】[originaltext]Beforethe1850’s,theUnitedStateshadanumber
【B1】[br]【B9】[originaltext]Beforethe1850’s,theUnitedStateshadanumbero
【B1】[br]【B5】[originaltext]Beforethe1850’s,theUnitedStateshadanumbero
【B1】[br]【B4】[originaltext]Beforethe1850’s,theUnitedStateshadanumbero
[originaltext]Anewreportsaysanestimated50millionto70millionAmericans
[originaltext]W:ElizabethMartinspeaking.M:Dr.Martin,mynameisMarkJohn
[originaltext]W:ElizabethMartinspeaking.M:Dr.Martin,mynameisMarkJohn
[originaltext]W:ElizabethMartinspeaking.M:Dr.Martin,mynameisMarkJohn
随机试题
Whentelevisionisgood,nothing—notthetheatre,notthemagazines,ornews
[originaltext]W:Goodmorning,class.TodayIthoughtwewouldtalkaboutsomet
ThesteakhousemaybeAmerica’sgreatestsingleachievement.Sure,there’st
某玩具制造商拟实施包括实现规模经济、针对3岁以下的幼儿设计独有的“幼童速成学习法
陶行知所批评的20世纪初在中国各大城市的幼儿教育机构中存在的“( )”三大弊病
蛇串疮
对氯丙嗪的叙述错误的是A:对体温调节的影响与周围环境有关 B:抑制体温调节中枢
A.v的取值由零开始增大时,杆对小球的作用力不变 B.v的取值由零开始增大时,
房屋之间无上盖的架空通廊不计算建筑面积?()
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
最新回复
(
0
)