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
2023-06-26
27
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 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 do we learn about the trip made by the young people?
23. What is the main topic of the passage?
24. What does the speaker say about the GPS?
25. What must be determined first before the GPS receiver can calculate other information?
选项
A、It was doomed for the start.
B、It turned out to be a disaster.
C、It was spoiled by one girl.
D、All the students enjoyed it.
答案
B
解析
录音开头提到:这三支探险队一开始的旅途非常愉快,但是,当沙尘暴袭来时,沙漠之旅变成了一场灾难。故B正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2783786.html
相关试题推荐
[originaltext]ThomasTommyCarterisaplantscientistinNorthCarolina.H
[originaltext]W:Andy,whathobbywouldyoutakeupifyouhadmoretime?M:I
[originaltext]W:Tony,[8]you’vebeenaracing-driverfornearly10years.You’
[originaltext]W:Tony,[8]you’vebeenaracing-driverfornearly10years.You’
[originaltext][5]/[6]TherecentlyreleasedreportfromtheInternationalAg
[originaltext][5]/[6]TherecentlyreleasedreportfromtheInternationalAg
[originaltext]The19thcenturyWildWestcriminalBillytheKidhasbeende
[originaltext][1]DefenseofficialsintheUnitedStateshaveconfirmedthat
[originaltext][23]Thesolution,bothtopreventtheexcessesofpraiseand
[originaltext]AnnRichardswasafamousDemocraticPartypoliticianfromth
随机试题
Thefirsthotelswerebuilt______.[br]Motelsareusually______.A、large,high
当高层建筑与其裙房之间设有防火墙等防火分隔设施,并设有自动喷水灭火系统时,裙房的
下列关于民用建筑内门的设置的说法,错误的是()。A.手动开启的大门扇应有制动装
若在区间(a,b)内,f′(x)=g′(x)则下列等式中错误的是()。A.f
洗胃的适应证与禁忌证分别是什么?
印象管理过程中的两个重要因素是什么?()A.外表 B.社会身份 C.
借款人以资产作抵押申请商业助学贷款时,应根据贷款银行的要求办理抵押物保险,在贷款
霉菌生长的条件是A.温度20℃~35℃ B.相对湿度75%以上 C.药材含水
关于通货膨胀影响的说法,错误的是( )。A.通货膨胀能够有效地扩张社会生产资本
低压厂用电系统中,电器元件组合。 在重要的低压电动机回路中不装的电器为()。
最新回复
(
0
)