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
2024-01-31
36
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. [22]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. [25]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/3409233.html
相关试题推荐
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Whentoday’scollegegraduatesgettogetherforareunionsomeday,theymay
Whentoday’scollegegraduatesgettogetherforareunionsomeday,theymay
Whentoday’scollegegraduatesgettogetherforareunionsomeday,theymay
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationa
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationa
随机试题
Wherearethetwospeakers?[br][originaltext]Cathy:Sherry,whydidyouaskm
Esperantoisanartificiallanguage,designedtoserveinternationallyasan
HealthworkerswhoareHIVpositivearebannedfromperformingmostsurgery
Hollywoodhasamessageforscientists:Ifyouwantsomethingthat’s100%ac
质量的定义是:客体的—组固有特性满足要求的程度,其中“特性”来源有( )。A.
毛果芸香碱缩瞳是:A.激动瞳孔扩大肌的α受体,使其收缩 B.激动瞳孔括约肌的M
臀先露发生率正确的是A.腿直臀先露发生率最低 B.早产的发生率高于枕先露 C
化学品安全技术说明书是一份传递化学品危害信息的重要文件。2008年重新修订的标准
排油注氮装置消防控制柜内相对湿度不应超过(____)。(A)75%(B)80
下列不属于作为物流节点的综合货运枢纽在物流系统中功能的是( )。A.衔接功能
最新回复
(
0
)