首页
登录
职称英语
[originaltext] (5)While flying high above the earth’s surface, jet fighter
[originaltext] (5)While flying high above the earth’s surface, jet fighter
游客
2024-02-02
33
管理
问题
(5)While flying high above the earth’s surface, jet fighter pilots may suffer loss of eyesight for brief periods. Some pilots may even lose consciousness—not being able to recognize what is happening around them. These experiences, commonly called "blackouts." can lead to tragic results.
Researchers say two different situations can lead to a pilot’s loss of consciousness. One is "G-LOC" or G-force induced Loss of Consciousness, and the other one is hypoxia, which is lack of oxygen to the brain.(6)G-LOC happens when the airplane is making a sharp turn or speeding up very quickly. During these periods, centrifugal force reduces the normal flow of blood to the pilot’s brain. At high speeds, loss of control of the aircraft has proved deadly for many pilots.(7)Hypoxia, or lack of oxygen, can affect anyone at extreme heights. That is why passenger planes are equipped with oxygen masks. Passengers are always told before flying to put on the masks in case of a sudden loss of air pressure.
5. What is the news report mainly about?
6. When does "G-LOC" usually happen?
7. Why are passenger planes equipped with oxygen masks?
选项
A、Permanent loss of eyesight of pilots.
B、Loss of consciousness of passengers.
C、Tragic results of air accidents.
D、Blackouts of jet fighter pilots.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3415525.html
相关试题推荐
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
随机试题
Thefatherwasthoroughlydishonestandtheson______him.Hehasalreadybeeni
不过,一个人到了四十岁后,在生活中大概都锻炼出宠辱不惊的本事,也不会在乎锦上添花、雪中送炭或落井下石了。那是因为我们已经历过生命的痛苦与挫折,也体验了许
TheGulfBetweenCollegeStudentsandLibrariansA)Student
Cricket,themosttypicalEnglishsport,hasbeen______sincethe16thcentury.A、
[originaltext]I’mhavingproblemslivingwithColin.We’vebarelyspokento
某甲施工单位通过施工投标方式与建设单位签订了某公路施工项目的施工合同。甲施工单位
苯巴比妥属于A.巴比妥类 B.氨基醚类 C.氨基甲酸酯类 D.苯二氮类
关于人民防空工程中,消防疏散照明的叙述正确的有()。A.人防工程的疏散走道、楼
2017年12月31日,甲被人打伤,但直到2018年4月30
下列关于砌体结构工程施工,说法正确的是()。A.当施工期间最高气温超过30℃时
最新回复
(
0
)