首页
登录
职称英语
[originaltext] GPS stands for the Global Positioning System. It refers to a
[originaltext] GPS stands for the Global Positioning System. It refers to a
游客
2024-02-19
46
管理
问题
GPS stands for the Global Positioning System. It refers to a system of satellites and receivers that allow people and devices to detect their precise location on the earth. (26) The heart of the system relies on 24 satellites that orbit the earth twice per day. Devices that are equipped with GPS equipment receive transmissions from at least a few of the satellites and are able to collect very precise positioning data. The first GPS satellite was launched in 1974 and the 24th was launched in 1994. The system is operated by the United States Department of Defense and the use of the system is free for anyone. New satellites are periodically launched to replace aging ones. (27) As the technology has improved, the cost of GPS devices has greatly declined while the accuracy has increased. Small portable GPS receivers have become very affordable, and the accuracy is amazing. Accuracy varies based on various factors, but it can be as good as a few meters! Land-based supplementary devices can be used to improve accuracy if higher precision is required. (28) The application of the GPS is very broad, and as the prices come down the number of uses is increasing. Portable GPS devices are used by fishermen to help them sail around the wild. Many new cars are being equipped with GPS systems to help drivers with finding directions. The military uses GPS to guide cruise missiles to pre-specified targets.
26. According to the passage, what stands at the center of the global positioning system?
27. Which aspect of the GPS is emphasized by the speaker?
28. According to the passage, why is the use of GPS increasing?
选项
A、The accuracy of GPS system.
B、The cost of GPS devices.
C、The weight of GPS devices.
D、The speed of information transmission.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3465759.html
相关试题推荐
[originaltext]W:Thepianosoundsterrible.M:IwishIcouldaskformymoney
[originaltext]W:Thepianosoundsterrible.M:IwishIcouldaskformymoney
[originaltext]W:Thepianosoundsterrible.M:IwishIcouldaskformymoney
[originaltext]W:Thepianosoundsterrible.M:IwishIcouldaskformymoney
[originaltext]W:Thepianosoundsterrible.M:IwishIcouldaskformymoney
[originaltext]ManyfamiliesintheUnitedStateshavealargerincomethan
[originaltext]ManyfamiliesintheUnitedStateshavealargerincomethan
[originaltext]ManyfamiliesintheUnitedStateshavealargerincomethan
[originaltext]"Gototheplaygroundandhavefun."Parentswilloftensayt
[originaltext]"Gototheplaygroundandhavefun."Parentswilloftensayt
随机试题
Thewomanwas______beforewhenexamswerecoming.[br][originaltext]W:Hi,Bil
FamilySoc
Inspringandsummer,themostpopular__i
A.①② B.③④ C.②③ D.②④
沥青的塑性用以下哪种指标表示?()A.软化点 B.延伸度 C.黏滞度
下列哪项不是气胸的分类()A.高压性气胸 B.闭合性气胸 C.开放性气
某上市公司因信息系统故障,造成年报未在规定日期前发布,另外近期高级管理人员发生频
监理工程师在某工业工程施工过程中进行质量控制,控制的主要内容有: (1)协助承
下列属于批复的写作要求的是:() A.一文一复 B.慎重及时 C.明确
考虑到作业时间和动作能量消耗,应用体力劳动强度指数将体力劳动强度分为Ⅰ、Ⅱ、Ⅲ、
最新回复
(
0
)