首页
登录
职称英语
[originaltext] For three groups of explorers formed by college students and
[originaltext] For three groups of explorers formed by college students and
游客
2024-01-29
26
管理
问题
For three groups of explorers formed by college students and young white collars, it started out as a wonderful trip. They were enjoying themselves exploring the Inner Mongolian desert. But when the sandstorm came, the trip became a disaster.
The drama unfolded during the May Day holiday. One girl did not make it before the students were rescued. The group was eventually found with the help of a GPS receiver.
GPS, or global positioning system, is a satellite-based navigation system made up of a network of 24 satellites. It was originally created for military use by the US in 1980s but is now available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. And the[24]service is free.
GPS satellites circle the earth twice a day and transmit signals and information to the earth. GPS receivers take this information and calculate the user’s exact location. A GPS receiver must be locked on to the signals of at least three satellites to calculate the latitude and longitude of its location. With four or more satellites in view, the receiver can determine the user’s altitude. Once the user’s position has been determined, the GPS receiver can calculate other information, such as speed, direction, distance to destination, and a whole lot more.
22. What is true about the trip made by the young people?
23. What is the main topic of the passage?
24. Which of the following is true about the GPS?
25. What must be determined first before the GPS receiver can calculate other information?
选项
A、The user’s position.
B、The speed of the satellites.
C、The distance to destination.
D、The information to the earth.
答案
A
解析
根据录音最后一句“一旦确定了使用者的位置,全球定位系统接收器就能计算其他的信息,如……”,可知A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3404533.html
相关试题推荐
[originaltext][22]Britishpolicesayasecondmanhasbeenarrestedinconn
[originaltext][22]Britishpolicesayasecondmanhasbeenarrestedinconn
[originaltext][19]Indiansaretheworld’sbiggestbookworms,readingonave
[originaltext]Afoxonedayfellintoadeepwellandcouldfindnomeanso
[originaltext]Afoxonedayfellintoadeepwellandcouldfindnomeanso
[originaltext]"WhereistheUniversity?"isthequestionmanyvisitorstoC
[originaltext][19]Doyouhaveatoughmathtestcomingup?Thenlistentos
[originaltext][19]Doyouhaveatoughmathtestcomingup?Thenlistentos
[originaltext][19]Doyouhaveatoughmathtestcomingup?Thenlistentos
[originaltext]Thesecretofalongandhappymarriageappearstobenotto
随机试题
[originaltext]WOMAN:Well,it’sprettywelllaidout,Iadmit,andit’ssortof
Revengeisoneofthosethingsthateveryoneenjoys.Peopledon’tliketot
Inpolicework,youcanneverpredictthenextcrimeorproblem.Noworking
______wasthoughttobeimpossibleinthepasthasnowbecomeareality.A、WhatB
下述关于肺淤血的描述.哪一项是错误的A.肺泡壁毛细血管扩张 B.肺泡内中性
Thechangeinthatvillagewasmiraculou
材料: 苏老师班里有不少学生的父母都外出打工去了,这些学生经常不能很好地完成作
“从物到感觉和思想”与“从思想和感觉到物”是( ) A.辩证唯物论与唯物论两
下列哪些类别的公共企业事业单位在提供社会公共服务过程中制作、获取的信息的公开,应
关于使用投资补助或贴息资金的项目决策程序的说法,正确的是()。A.政府对贴
最新回复
(
0
)