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
A、Crowded air traffic. B、The large size of airplanes. C、Mistakes by air traffic controllers. D、Bad weather. C选项中的Crowded air tra
A、Crowded air traffic. B、The large size of airplanes. C、Mistakes by air traffic controllers. D、Bad weather. C选项中的Crowded air tra
admin
2019-04-23
51
问题
Today, air travel is far safer than driving a car on a busy motorway. But there is a danger that grows every year. From the moment an airplane takes off to the moment it lands, every movement is watched on radar screens. Air traffic controllers tell the pilot exactly when to turn, when to climb and when to come down. The air traffic controllers around a busy airport may handle 1,000 planes a day. Any plane that flies near the airport comes under the orders of the controllers there. Even a small mistake on their part could cause a disaster. Recently, such a disaster almost happened. Two large jets were flying towards the airport. One was carrying 69 passengers and had come from Toronto. The other was carrying 167 passengers from Chicago. An air traffic controller noticed on his radar screen that the two planes were too close to each other. He ordered one to turn to the right and to climb, but he made a mistake. He ordered the wrong plane to do this. So, instead of turning away from the second plane, the first plane turned towards it. Fifteen seconds later, it flew directly in front of the second plane. They avoided each other by the smallest part of a second. The distance between them was less than that of a large swimming pool. This is an example of the danger that grows every year.
Questions 23 to 25 are based on the passage you have just heard.
23. Which factor can most seriously endanger airplanes according to this passage?
24. What happened to the large jets?
25. Why were the two large jets specially mentioned?
选项
A、Crowded air traffic.
B、The large size of airplanes.
C、Mistakes by air traffic controllers.
D、Bad weather.
答案
C
解析
选项中的Crowded air traffic,Mistakes和Bad weather表明,本题与空难的原因有关。由短文中提到的Any plane…comes under the orders of the controllers there以及Even a small mistake…cause a disaster可知,可能对飞机造成最严重成胁的因素是空中交通管制员的差错,故答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/FJZ7777K
0
大学英语四级
相关试题推荐
BritishpsychologistshavefoundevidenceofalinkbetweenexcessiveInternetuseanddepression,aresearchhasshown.Lee
A、Hewilluseamasterkeytoopenthedoor.B、HewillgetAshley’skeyfromthewoman.C、Hewillaskthedepartment’ssecretary
A、SkiinCalifornia.B、Teachthemantoski.C、VisitherfriendsinEurope.D、Staywiththeman’sfamily.D男士说“你可以在我那里过圣诞节”,女士表示
A、Itcanhelpcatchstolencars.B、Itcanpackagefood.C、Itmakescarsrunfaster.D、Itgivesinformationtothedrivers.A短文中提
A、Sheclosedherfreeblogservicelastweek.B、Shewasupsetwhenherfavoritesitewasclosed.C、Herwebsiteisstillstronga
A、Theydescribeditasacompletefailure.B、Theydescribeditaswildlysuccessful.C、Theydescribeditasadventurous.D、They
A、Itwasacustomtodoso.B、Therewasfluinthecity.C、Thepollutionwasserious.D、Wearingamaskwaspopular.C女士说这个城市的空气质
A、Bothrequirestrengthandspecializedskills.B、Bothrequireheightandresponsibility.C、Bothrequireenthusiasmandhardwor
A、Hungary,MalaysiaandthePhilippines.B、Hungary,RomaniaandthePhilippines.C、Spain,RomaniaandthePhilippines.D、Hungary
随机试题
经室内试验测定,一岩块的单轴饱和抗压强度为65MPa,该岩块属于()。
常用的单一配送中心选址方法有( )和( )。
接受三叉丘系的核是()
骨折不愈合
高钾血症的心电图表现有()。
《产业结构调整指导目录》中()适用于外商投资企业。
背景资料:A公司中标一地下工程,其中基坑深6m,因土质较好,周围又不受施工场地限制,A公司采用明挖基坑,喷锚支护的方法。施工方案得到批准。中标后A单位把基坑土方开挖分包给不具备安全资质的B公司。B公司施工时把大量挖土弃置于基坑顶部,建设单位及监理单位发
甲企业进口一批货物,海关审定货价折合人民币5460万元,支付到达我国境内输入地点起卸前的运费折合人民币40万元,境内运费5万元,该批货物进口关税税率为10%,保险费无法确定,甲企业进口该批货物应缴纳关税()万元。
老干部不愿意参加健美操比赛,你怎么组织?
冯诺依曼体系结构的计算机有两个主要组成部件:内存和处理器。其中,内存用于存储指令和数据。在大多数高级语言程序中,(30)_______是内存单元的抽象。微处理器中的ALU可执行算术运算和(31)_______操作。(30)_______A.
最新回复
(
0
)