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
68
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、It was created mainly for scientific research.
B、It works better in fine weather conditions.
C、It must be located on at least three satellites.
D、Its service is free of charge.
答案
D
解析
考查对细节的记忆,符合短文听力“听到什么选什么”的解题原则,答案为D。A错在scientific research,应为military use;GPS在任何天气情况下都一样起作用,故B错;C中的指代有误,主语若是A GPSreceiver才与原文相符,故也排除C。
转载请注明原文地址:https://tihaiku.com/zcyy/2784754.html
相关试题推荐
[originaltext]Chinesegovernmentisreadytocarryoutitsfirstnationals
[originaltext]Chinesegovernmentisreadytocarryoutitsfirstnationals
[originaltext]InasuburbinnorthernJohannesburgSouthAfrica,LorraineM
[originaltext]Spain’sKingJuanCarlos,beinganemperorfor32years,turn
如今大学生的生活方式正在发生着变化。Nowcollegesanduniversitiesareseeingachangeinthestude
一项调查结果显示,许多大学生每日阅读时间不足1小时,而上网时间却超过了4小时。Accordingtoasurvey,manycollegestude
[originaltext]Sinceaunionrepresentativevisitedourcompanytoinformus
[originaltext]Sinceaunionrepresentativevisitedourcompanytoinformus
[originaltext]Whenpeoplecareforanelderlyrelative,theyoftendonotu
[originaltext](16)Therearemanycommonlyheldbeliefsabouteyeglassesan
随机试题
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanya
【B1】[br]【B10】A、ideologicalB、biologicalC、socialD、psychologicalB本题测试形容词的用法。b
EmbroideryisabrilliantpearlinChineseart.FromthemagnificentDragon
可行性研究阶段一般对应的是设计总概算。()
毒物毒性大小的主要决定因素为()A.剂量 B.接触途径 C.接触频率
胎儿畸形引起羊水过少最多见的是( )A.无脑儿 B.脊柱裂 C.腭裂 D
大黄抑制肾髓质Na+-K+-ATP酶,可A.抗肿瘤 B.降血脂 C.治疗氮质
马斯洛需求层次中的最高层次是()。A.生理需求 B.自我实现的需求 C
焊接前检验的基本要求有()A.焊前预热的加热方法、加热宽度、保温要求、测温
现浇钢筋混凝土水池施工方案中包括模板及其支架设计,以下()不是模板及其支架设计
最新回复
(
0
)