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
2023-11-23
82
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:https://www.tihaiku.com/zcyy/3212152.html
相关试题推荐
[originaltext](I):Um-hum.Nowyoumentionedsomethingaboutmaximizingyour
[originaltext](I):Um-hum.Nowyoumentionedsomethingaboutmaximizingyour
[originaltext](A)=Dr.CharlesAdams(I)=Interviewer(I):Goodevening
[originaltext](A)=Dr.CharlesAdams(I)=Interviewer(I):Goodevening
[originaltext](A)=Dr.CharlesAdams(I)=Interviewer(I):Goodevening
[originaltext](A)=Dr.CharlesAdams(I)=Interviewer(I):Goodevening
[originaltext](I):So,ifyousaythere’sacrisis,thenwhatdowedo?Now,
[originaltext](I):So,ifyousaythere’sacrisis,thenwhatdowedo?Now,
[originaltext](R)=CondoleezzaRice(I)=Interviewer(I):Finallytonig
[originaltext](R)=CondoleezzaRice(I)=Interviewer(I):Finallytonig
随机试题
WhydidthegirlinvitedUncleSmithtodinner?[br][originaltext]W:Goodmorn
[img]2015m2s/ct_etoeiclm_etoeiclzp_0301_201511[/img][br][originaltext](A)He’s
VisitorstoBritainmayfindthebestplacetosamplelocalcultureisina
MaryandJohnarebusylookingforahotelfortheirwedding________.A、mealB、sn
[originaltext]W:ProfessorSmithwassostrangetoday.M:Inoticedthat,too.
A.左半结肠切除术 B.经腹会阴联合直肠切除术 C.全结肠切除术 D.部分
地黄的主要活性成分是()。A.挥发油类B.木脂素类C.生物碱类D.环烯醚萜苷类
急性白血病患者错误的护理措施是A.高热量、高蛋白饮食 B.控制饮水量 C.避
在多层或高层建筑物内设置垂立的管道,每层设倒口,底层垃圾间里设垃圾容器。这是垃圾
《上海证券交易所债券交易实施细则》规定,债券回购交易集中竞价时,申报数量为()手
最新回复
(
0
)