首页
登录
职称英语
[originaltext] (5)While flying high above the Earth’s surface, jet fighter p
[originaltext] (5)While flying high above the Earth’s surface, jet fighter p
游客
2024-01-26
31
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 speed, 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、When the airplane slows down very quickly.
B、When the airplane is making a sharp turn.
C、When the pilots have a heart attack.
D、When the pilots lose consciousness.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3395771.html
相关试题推荐
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
[originaltext]Shorttrackspeedskatingisonlyabout100yearsoldandap
[originaltext]Shorttrackspeedskatingisonlyabout100yearsoldandap
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext]InSwedenandNorway,thepracticeofsplittingthebillinr
[originaltext]InSwedenandNorway,thepracticeofsplittingthebillinr
[originaltext]WithonlytwoweekstogobeforeChristmas,buyingpresentsi
[originaltext]WithonlytwoweekstogobeforeChristmas,buyingpresentsi
随机试题
Harry’sHireCompanyExampleHirefor:birthdaypartyEquipmentHire:Dayan
Thenever-ceasingpaceofscientificaccomplishmentoftensurpassestheprog
阅读下列说明,回答问题1至问题3,将解答填入答题纸的对应栏内。【说明】某小区由于
发行人申请在上海证券交易所科创板上市,应当符合的条件不包括( )。A.发行后股
按规定,药品与仓间的哪项之间没有强调应有相应的间距或隔离措施A.地面B.墙C.顶
作为承载信息极大丰富的民族基因宝库,文化并非扁平的、冰冷的物件,其所涉及的科学门
下列是我国小学生的一些需要,试用马斯洛的需要层次理论指出下列选项中层次最高的是(
银行为VIP客户提供比办理一般人民币业务客户更加便捷的服务,违反了“公平对待”原
FIDIC施工合同条件中,对有经验的承包商在()前不能合理预见到的风险,归业主
与项目建设有关的其他费用中,不属于建设管理费的是()。 A.建设单位
最新回复
(
0
)