首页
登录
职称英语
[originaltext]Not, long ago, some of you may have read about the team of mounta
[originaltext]Not, long ago, some of you may have read about the team of mounta
游客
2023-08-01
32
管理
问题
Not, long ago, some of you may have read about the team of mountain climbing scientists who helped to recalculate the elevation of the highest mountain in the world, Mount Everest. Of course the elevation of Mount Everest was determined many years ago using traditional surveying methods. But these scientists wanted to make a more pre else measurement, using a new method that takes advantage of recent advances in technology; it’s called the Global Positioning System. The Global Positioning System uses 24 satellites that circle the earth. Each of the satellites is constantly sending out signals, and each signal contains important information that can be used to determine the longitude, latitude and elevation at any point on the earth’s surface. Well in order to use the system to calculate a mount of Everest’s elevation, scientists need to put a special receiver on the summit to receive signals from the satellites. The problem with this was that in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a hand held telephone, so climbers were able to take the receiver to the top of the Everest, and from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than us previously thought.
选项
A、To carry information that would help determine elevation.
B、To provide accurate weather reports.
C、To relay information from scientists around the world.
D、To indicate which route the mountain climbers should take.
答案
A
解析
In the study described,how were satellite signals used?
细节题。解答此题的关键是把原文(contains important information that can be used to determine the longitude,latitude and elevation)进行概括(carry information that would help determine elevation)。
转载请注明原文地址:https://tihaiku.com/zcyy/2887729.html
相关试题推荐
[originaltext]Asanyhomemakerwhohastriedtokeeporderatthedinnerta
[originaltext]Inbringingupchildren,everyparentwatcheseagerlythechi
[originaltext]Atruefriendshipcarriesalonghistoryofexperiencethatd
[originaltext]W:Oh,Ken,Ihavebeenmeaningtotalktoyou.M:Hi,Denise!Wh
[originaltext]W:Oh,Ken,Ihavebeenmeaningtotalktoyou.M:Hi,Denise!Wh
[originaltext]W:Oh,Ken,Ihavebeenmeaningtotalktoyou.M:Hi,Denise!Wh
[originaltext]W:Hello,ProfessorDannis,mynameisAnnaAdams.Ireadinthe
[originaltext]W:Hello,ProfessorDannis,mynameisAnnaAdams.Ireadinthe
[originaltext]Withtheintroductionoftheradio,newspaperpublisherswond
[originaltext]Withtheintroductionoftheradio,newspaperpublisherswond
随机试题
[A]sturdy[I]explanation[B]vessels[J]consequences[C]Previously[K]na
PASSAGETWO[br]WhatarethenamesofMandy’schildrenfromtheoldesttothey
Doctorsandthehealth-caresystemsinallnationsstilllargelyusepapert
以下属于诗意现实主义的特征的是( )。A.表现现实生活 B.电影结局多为悲剧
液态奶重点关注的营养成分有( )。A.寡糖 B.蛋白质和氨基酸 C.乳糖
下列有关体温的描述正确的选项是A.女性体温较男性体温稍高 B.婴幼儿体温较稳定
四环素不具有下列哪个性质A.具酸、碱两性B.含有羧基C.含有酚羟基和烯醇基D.能
消化性溃疡患者服用制酸药宜在A.餐前 B.餐后1小时及睡前各服用一次 C.两
公路建设项目声环境现状调查的内容应包括评价范围内的( )。A.现有噪声源 B.
骨骼肌细胞中作为Ca2+受体的是 A肌凝蛋白B肌纤蛋白c肌钙蛋白D肌红蛋
最新回复
(
0
)