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
67
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、They thought it was the weapon of the gods.
B、They thought it was electricity.
C、They thought it was firework of the gods.
D、They thought it was a mystery.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2883275.html
相关试题推荐
[originaltext]M:It’salmostmidnight,whydon’tweleavethosedishesuntilto
[originaltext]M:It’salmostmidnight,whydon’tweleavethosedishesuntilto
[originaltext]M:It’salmostmidnight,whydon’tweleavethosedishesuntilto
[originaltext]M:It’salmostmidnight,whydon’tweleavethosedishesuntilto
[originaltext]M:It’salmostmidnight,whydon’tweleavethosedishesuntilto
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,an
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,an
[originaltext]Weknowthatwehavetopayforwhatweget.Ifwebuyfood,w
[originaltext]Weknowthatwehavetopayforwhatweget.Ifwebuyfood,w
【B1】[br]【B10】[originaltext]Beforethe1850’s,theUnitedStateshadanumber
随机试题
ItwasinChina_______theagreementwassigned.A、thatB、whichC、whereD、whatA
[originaltext]W:Mr.Johnson,canyoudeliverourgoodsnextweek?M:No,I’ma
[originaltext]M:Thesesilverearringsareonly16dollarsthisweek.Thegold
实际工程中常用的离心泵叶轮大多采用()叶片。A.前弯式 B.后弯式 C.
防火墙对数据包进行过滤时,不能进行过滤的是()。A.源和目的IP地址 B.
机电设备的立柱壁厚、板厚做检测,仪器一般用超声波测厚。()
根据《城乡规划法》,没有授权( )核发《建设工程规划许可证》。A.省、自治区人
以下关于战略导向KPI体系的说法,不正确的是( )。A.KPI体系以控制为中心
某土石坝坝址区地震烈度为8度,在10号孔深度为3m、6m和13m处测得剪切波速值
经常项目的国际收支不包括()。A:贸易收支B:劳务收支C:单方面转移D:长
最新回复
(
0
)