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
2024-02-01
83
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 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、A thrilling exploration in the desert.
B、How GPS saved the survivors.
C、What is GPS and how it works.
D、The danger of space exploration.
答案
C
解析
主旨题应该概括且含有核心词,符合此要求的是C,全篇大部分文字都是在介绍GPS及其功用。
转载请注明原文地址:https://tihaiku.com/zcyy/3413595.html
相关试题推荐
Argentina(landofsilver)wasgivenitsnameby16th-centuryexplorerswhobe
Argentina(landofsilver)wasgivenitsnameby16th-centuryexplorerswhobe
Argentina(landofsilver)wasgivenitsnameby16th-centuryexplorerswhobe
Argentina(landofsilver)wasgivenitsnameby16th-centuryexplorerswhobe
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Whentoday’scollegegraduatesgettogetherforareunionsomeday,theymay
随机试题
Onemorning,Iwaswaitingatthebusstop,worriedabout【K1】______(be)late
Youshouldbedirectly______withthisissuetomakeanaccuratereportofit.A
ShouldCollegeDormitoriesHavetheInternet?1.许多大学宿舍都接通了网络2.学校宿舍接通网络的利与弊3.我的
[originaltext]Now,listentoPartTwooftheinterview.W:Well,whatarethem
中国近代史上第一次明确将美育列入教育方针,并提出“以美育代宗教”的教育家是()
甲公司成立于2001年,致力于以领先的人工智能技术推动重工业转型升级。公司拥有自
Thechangeinthatvillagewasmiraculou
《变电运维管理规定》:操作人验电前,在临近相同电压等级()测试验电器,确认验电
某医药集团有限公司是一家具有50多年历史的国家一级企业,公司生产10大类170多
β2受体兴奋剂在应用两周后,常引起β2受体下调,使支气管舒张作用减弱。下列哪种药
最新回复
(
0
)