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
22
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、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/2783787.html
相关试题推荐
[originaltext]ThomasTommyCarterisaplantscientistinNorthCarolina.H
[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][1]DefenseofficialsintheUnitedStateshaveconfirmedthat
[originaltext][23]Thesolution,bothtopreventtheexcessesofpraiseand
[originaltext][23]Thesolution,bothtopreventtheexcessesofpraiseand
随机试题
数据处理功能贯穿于企业管理信息系统整个运行过程中,具体包括( )。A.数据采集
在建筑装饰施工中,相对标高是以建筑物的首层室内主要区域空间的()为零点,用士0
不宜从口内切开引流的间隙脓肿为() A.眶下间隙 B.颊间隙
溃疡性结肠炎病变部位不包括A.直肠 B.升结肠 C.降结肠 D.回肠末段
善祛经络之风痰的药物是A.天南星B.代赭石C.桔梗D.白芥子E.半夏
C
关于SC1~90,正确的说法是( )。A、年龄因素的影响较性别因素大
企业对其分类为投资性房地产的写字楼进行日常维护所发生的相关支出,应当计入管理费用
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
男,35岁,因车祸右小腿受伤,经拍X线片,诊断为右胫骨中下1/3交界处斜形骨折,
最新回复
(
0
)