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
2024-02-07
34
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. 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. 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. 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.
16. According to the passage, what is the most important part of the global positioning system?
17. Which aspect of the GPS is emphasized by the speaker?
18. According to the passage, why is the use of GPS increasing?
选项
A、The position which the system provides.
B、The information transmitted from satellites.
C、The satellites that revolve around the earth.
D、The portable device installed in vehicles.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3430975.html
相关试题推荐
[originaltext]Farmington,Utah,isamorepleasantcommunitysincealocal
[originaltext]Farmington,Utah,isamorepleasantcommunitysincealocal
[originaltext]Farmington,Utah,isamorepleasantcommunitysincealocal
[originaltext]Accordingtoasurveyonreadingconductedin2001bytheU.S
[originaltext]Accordingtoasurveyonreadingconductedin2001bytheU.S
[originaltext]W:Goodafternoon,Mr.Jones.IamTeresaChen,andI’llbeinter
[originaltext]W:Goodafternoon,Mr.Jones.IamTeresaChen,andI’llbeinter
[originaltext]M:Lisa,Lisa!Overhere,darling!It’swonderfultoseeyou.Oh,
[originaltext]M:Lisa,Lisa!Overhere,darling!It’swonderfultoseeyou.Oh,
[originaltext]W:Whatareyoudoinginhere,Sir?Didn’tyouseetheprivatesi
随机试题
TheFrench,longproudoftheirreputationforhigh-classcuisine,strongly____
与普通合伙企业相比,下列各项中,属于股份有限公司缺点的是()。A.筹资渠道少
下列用于镇静催眠的最佳药物是A、氯氮卓 B、地西泮 C、巴比妥类 D、苯妥
Numbersenseisnottheabilitytocount
电磁流量计在工、农业生产中有广泛的应用,常用来测量高黏度,强腐蚀性带电流体的流量
结构性票据不一定派发利息,而且大部分结构性票据也不保本。()
下列属于绩效管理系统的组成要素的是()。A:考评者与被考评者 B:绩效指
《机电产品国际招标投标实施办法》规定,不予受理的质疑情况有()A.由非投标人提
我国的资本市场主要包括( )。A.同业拆借市场、回购市场和票据市场 B.股票
治疗肾癌的主要方法是 A.单纯性肾切除 B.肾肿瘤剜除术 C.放疗
最新回复
(
0
)