首页
登录
职称英语
What is Telstar X made of? [originaltext] Government officials have expresse
What is Telstar X made of? [originaltext] Government officials have expresse
游客
2024-11-01
41
管理
问题
What is Telstar X made of?
Government officials have expressed anxiety over the decent of Telstar X, a satellite which is slowly reentering the earth’s atmosphere. The satellite is supposed to make its descent sometime within the next several months. Because Telstar X is built of titanium, it is not expected to disintegrate upon reentry. In fact, there are fears that dozens of pieces weighing up to several kilograms could survive the reentry process.
Although several kilograms sounds like a small amount of material, it must be remembered that when an object from space strikes the earth, the consequences can be disastrous. Many scientists believe that asteroids from space striking the earth may have caused the extinction of the dinosaurs. Even an object as large as several grams can destroy an entire house. If larger pieces fall on inhabited areas the devastation would be significant.
The pieces of the satellite are not expected to all land in one area. It is likely that they would be spread out over hundreds of kilometres. This is a dangerous situation in which many homes could be destroyed and many people injured. If we are lucky, the pieces of the satellite will fall over the oceans. Luckily, since the oceans cover almost three quarters of the earth’s surface, there is a good chance of that happening.
选项
A、Titanium.
B、Asteroid material.
C、Steel
D、Uranium.
答案
A
解析
原文中有“Because Telstar X is built of titanium..." 一句。
转载请注明原文地址:http://tihaiku.com/zcyy/3826720.html
相关试题推荐
Aprobabletitletothispassagemightbe______.[br][originaltext]Someki
HowmanytimeshasJohnny’steamwontheLeagueCup?[originaltext]A:I’dliket
[originaltext]USFAMILIESTODAYIntheearlyd
WhatisinthemindoftheTaliban?[br][originaltext]AtKandaharAirport,
WhatisinthemindoftheTaliban?[originaltext]AtKandaharAirport,parame
WhatisTelstarXmadeof?[br][originaltext]Governmentofficialshaveex
WhatisTelstarXmadeof?[originaltext]Governmentofficialshaveexpresse
Whatisthegeneraltopicofthelecture?[br][originaltext]Itmaybetru
Whatisthegeneraltopicofthelecture?[originaltext]Itmaybetrue,and
HowisJackyrecently?[br][originaltext]F:Hey,jack!Howareyouthesedays?
随机试题
Corporalpunishmenthasbeenpracticedinfamiliesforquitealongtime.In
[originaltext]CannesFilmFestival,themostprestigiousmotion-picturefe
Yourmusclesareworkingtomoveaweightwhenyouare______.[br]Aerobicres
NarratorListentopartofalectureinamassmediaclass.Nowgetreadytoans
Itcanbetemptingtomakeahastydecisionwhenakilleropportunitycomes
近曲小管上皮细胞内玻璃样小滴的病理特征是()。A.光面内质网大量增生 B.前
胆红素进入肝细胞后即被细胞质内的受体结合,以利于结合胆红素的形成。该受体是A.c
某零售商的采购部门职员观察商品采购员如何使用联机采购系统,然后用用户代码进入该系
表中有几个机场2011年货邮吞吐量同比下降?() A.2 B.3 C.
个人住房贷款业务中,操作风险的防范措施包括()。A.在实践工作中,个人住房贷款
最新回复
(
0
)