首页
登录
职称英语
[originaltext]For three groups of explorers formed by college students and youn
[originaltext]For three groups of explorers formed by college students and youn
游客
2023-08-12
58
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. [12] 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 [14] 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. [15] 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.
Questions 12 to 15 are based on the passage you have just heard.
12.What is true about the trip made by the young people?
13.What is the main topic of the passage?
14.Which of the following is true about the GPS?
15.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
转载请注明原文地址:https://tihaiku.com/zcyy/2920232.html
相关试题推荐
[originaltext]Afewyearsago,IfeltlikeIwasstuckinarut,soIdecid
[originaltext]Theoilindustry,withitshistoryofboomsandbusts,appear
[originaltext]Moderator:Hi,everyone!It’sagreathonorformetointrodu
[originaltext]Moderator:Hi,everyone!It’sagreathonorformetointrodu
[originaltext]Moderator:Hi,everyone!It’sagreathonorformetointrodu
[originaltext]Moderator:Hi,everyone!It’sagreathonorformetointrodu
[originaltext]Everybodytalksabouthappinessthesedays.Ihadsomebodyco
[originaltext]Everybodytalksabouthappinessthesedays.Ihadsomebodyco
[originaltext]Everybodytalksabouthappinessthesedays.Ihadsomebodyco
[originaltext]Moderator:Helloeverybody,Iamhappytointroduceourrespe
随机试题
[originaltext]W:John,doyouliketogoswimmingatthepoolwithmetoday?I’
王某将其集成电路布图设计申请登记,关于集成电路布图设计的申请程序,以下选项正确的
A.组织面 B.磨光面 C.咬合面 D.组织面-磨光面 E.组织面-磨光
商业银行开始向客户提供专业化投资顾问和个人外汇理财服务是我国个人理财业务的萌芽阶
十进制数+37的补码为00100101,其相反数的补码应为()。A.1101
在亚硝酸钠滴定法中,KBr的作用是A.增加重氮盐的稳定性B.防止副反应发生C.加
培训资源中培训空间的充分利用,对学习者空间位置的不同设计可以有( )等。A.U
古代埃及教育的一大特征是“以()为师”、“以()为师”。
下列焊接工艺评定说法中,不符合规定的是()。A.当改变任何一个重要因素时,
节能分部工程的验收可以由( )主持。A.政府监督部门 B.总监理工程师 C
最新回复
(
0
)