首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Sputnik I was the first artificial satellite. It can be described as an aluminum(1)______ with a diameter of 58 centimeters and
Sputnik I was the first artificial satellite. It can be described as an aluminum(1)______ with a diameter of 58 centimeters and
admin
2013-12-13
40
问题
Sputnik I was the first artificial satellite. It can be described as an aluminum(1)______ with a diameter of 58 centimeters and weighing 83.6 kilograms,(2)______ with instruments to measure the temperature and the (3)______ of the atmosphere. Sputnik I was launched into(4)______ around the Earth by the former Soviet Union on 4 October 1957. Since then, hundreds of artificial satellites have been launched,(5)______ with a different function.
Some artificial satellites are used for telecommunication, which(6)______ us to make telephone calls to any part of the world, to see(7)______ television transmissions and to communicate via the Internet. Other artificial satellites are used for navigation,(8)______ people on Earth can know(9)______ any moment the position of an object, within a few meters.(10)______ are weather or meteorological satellites, launched to (11)______ the state of the atmosphere and to follow the(12)______ of the clouds as they gather. There are also military satellites, for the purpose of(13)______ information on the armaments and the troops in countries which may be(14)______ and also to indicate the launch of a missile.
Each satellite has its own orbit which is(15)______ according to its purpose. Communications satellites, for example, have a geostationary orbit. That is an orbit which turns at the same speed as the(16)______ of the Earth. Satellites used for weather forecasting pass over the two poles of the Earth.(17)______ so doing, a different part of the Earth surface is viewed on each(18)______ orbit. All artificial satellites get the energy they need by huge solar panels which (19)______ like wings. These are (20)______ controlled in such a way that they are always turned toward the Sun.
(4)
选项
A、rail
B、route
C、orbit
D、path
答案
C
解析
词汇线索题。根据常识,人造卫星肯定是发射至环地球轨道的,故C项orbit正确。rail“铁轨”;route“路程,通道”;path指因特殊用途而修建的路、径或轨道,如:a bicycle path(自行车道)。
转载请注明原文地址:https://jikaoti.com/ti/unmMFFFM
0
专业英语四级
相关试题推荐
Wehadn’tmetfor20years,butIrecognizedher______Isawher.
Theproblemisbelieved______atthemeetingtwodaysago.
Publicacceptanceofrabbitasaneconomicalsourceofproteindependson______.
He______havebeenwaitingforusforanhour,forheseemsalittleanxious.
It’simpossibletowriteabouthowhumanactivitiesarealteringtheclimatewithoutbringingproteststhatsuchathingisimpo
RuthHandlerinventedsomethingin1959whichbecamesoquintessentiallyAmericanastobeincludedintheofficial"America’s
Ifnuclearbombsaredroppedonanareathesurvivorswill
WhenMelissaMahanandherhusbandvisitedtheNetherlands,theyfeltimprisonedbytheirtourbus.Itforcedthemtoseetheci
Tobesuccessfulinajobinterview,youhavetodothefollowingEXCEPT
Tedcouldn’tremembertheexactdateofthestorm,butheknewitwas______Sundaybecauseeverybodywasat______church.
随机试题
陶渊明《饮酒(其七).秋菊有佳色》一诗主要的艺术特色是()
停车数量不大于()辆的汽车库,以及室内无车道且无人员停留的机械式汽车库应设置消防应急照明和疏散指示标志。
电动蔬菜榨汁机(重量40公斤)
A公司与B大学合作开发完成一项发明,在双方事先没有约定的情况下,()。
ScarboroughGeneralHospitalhastwo______forcertifiedX—raytechnicianstostartimmediately.
教师通过和其他同事的“头脑风暴”,收集各种教学“病例”,然后进行归类分析,得出解决对策的方法属于()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性。()
2005年,浙江省的贸易顺差为()。
设曲线弧y=sinx(0<x<π)。求出曲线弧的最小曲率半径。
设向量组α1=(1,1,1,3)T,α2=(-1,-3,5,1)T,α3=(3,2,-1,p+2)T,α4=(-2,-6,10,p)T,p为何值时,该向量组线性无关?并在此时将α=(4,1,6,10)T用α1,α2,α3,α4线性表出.
最新回复
(
0
)