首页
登录
职称英语
What is Telstar X made of? [br] [originaltext] Government officials have ex
What is Telstar X made of? [br] [originaltext] Government officials have ex
游客
2023-11-23
87
管理
问题
What is Telstar X made of? [br]
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、Several ounces.
B、Large enough to kill the dinosaurs.
C、Large as a house.
D、More than one kilogram.
答案
D
解析
原文中有“Although several kilograms sounds like a small amount of material...” 一句。
转载请注明原文地址:https://tihaiku.com/zcyy/3212155.html
相关试题推荐
PassageThree[br]Whatdoesthesentence"thegovernmenthascut...trainingcou
(1)SocialmobilityintheU.K.couldbereversedunlessthegovernmentandu
[originaltext]M:Allright,[6-1]thisnextoneisanexecutivepastrycheftha
[originaltext]W:Well,isithardertobeacomedianorascientist?M:Ithink
[originaltext]M:InMyPoets,youwriteaboutattendingreadings,andsocializi
[originaltext]M:[1-1]MaureenMcLaneisapoetandcritic.Afterherundergrad
[originaltext]Interviewer:Letmeturnitontothemanwhomayendupthewinn
[originaltext]Interviewer:Letmeturnitontothemanwhomayendupthewinn
[originaltext]Interviewer:Goodevening,listeners.ThisisBBC.Todaywearev
[originaltext]Interviewer:Goodevening,listeners.ThisisBBC.Todaywearev
随机试题
A______forperilisavirtualprerequisiteforanyadventurerfoolhardyenought
[originaltext]Modernwomanmaybebettereducated,haveabetterjobandea
Itwasdifficulttoguesswhather______tothenewswouldbe.A、impressionB、rea
防排烟联动控制中,当防火分区内火灾确认后,应能在()s内联动开启常闭加压送风口
关于Ⅱ型变态反应的特点不正确的是A.有吞噬细胞、NK细胞参与 B.后果为靶细胞
患儿8个月,发热、腹泻5天,气促、面色苍白、烦躁1天。心率54次/分,心律不齐,
人口数量和质量的变化,对地区和国家未来发展有很大影响。据此回答题。 我国
关于个人汽车消费贷款,说法不正确的是()。A:贷款不得异地发放 B:贷款期限最
患者男,43岁。近3个月来排便次数增多,下腹隐痛,直肠指检距肛门口约4cm处触及
A.补体结合试验阳性 B.甲胎蛋白阳性 C.右上腹绞痛及黄疸 D.穿刺抽出
最新回复
(
0
)