首页
登录
职称英语
[originaltext] Not long ago, some of you may have read about the team of mou
[originaltext] Not long ago, some of you may have read about the team of mou
游客
2024-03-06
67
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 precise measurement, using a new method that takes advantage of recent advances in technology; it’s called the Glob al 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?
转载请注明原文地址:https://www.tihaiku.com/zcyy/3510822.html
相关试题推荐
[originaltext]It’ssometimesoneofthescariestwordsinEnglishlanguage,
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
[originaltext]M:Goodmorning.Todaywe’lltalkaboutgoal-settingandweh
[originaltext]M:Goodmorning.Todaywe’lltalkaboutgoal-settingandweh
[originaltext]M:Goodmorning.Todaywe’lltalkaboutgoal-settingandweh
[originaltext]M:Oh.Hi.there.(1)Abeauty,isn’tshe?Doyouwanttotake
[originaltext]M:Oh.Hi.there.(1)Abeauty,isn’tshe?Doyouwanttotake
[originaltext]M:Oh.Hi.there.(1)Abeauty,isn’tshe?Doyouwanttotake
[originaltext]Whenpeopleencountersomeonewithastrongpersonality,they
[originaltext]Whenpeopleencountersomeonewithastrongpersonality,they
随机试题
Lookatthestatementsbelowandatthefiveextractsfromanarticleaboutloss
Man:Bettyisalwayscomplainingaboutherson.Woman:Sheshouldtakecareofm
I.Plato’sideaofgoodnessandjusticeA.Agoodandjustsocietydependson(1
[originaltext]TheGoldenGateBridgejoinsthebeautifulcityofSanFranci
患者经常不易入睡,或寐而易醒,甚则彻夜不眠,伴见心悸多梦,易惊恐,舌质淡,脉弦细
某投资者甲持有一债券,面额为100元,票面利率为10%,期限为3年,2013年1
在加涅和布里格斯的教学设计程序中,课堂级包括( )。A.确定行为目标 B.制
A.简化治疗方案 B.使患者了解药物的重要性 C.使用分时药盒和用药记录
与其他筹资方式相比,公司发行普通股融资的特点有()。A.资金成本低 B.融资风
受较大水平荷载或位于斜坡上的建筑物及构筑物,当建造在处理后的地基上时,应进行地基
最新回复
(
0
)