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
2023-06-22
44
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/2773764.html
相关试题推荐
[originaltext]Inmanybusinesses,computershavelargelyreplacedpaperwork
[originaltext]Inmanybusinesses,computershavelargelyreplacedpaperwork
[originaltext]Wall-to-wallmirrorsingymsanddancestudiosmightstopwom
[originaltext]Wall-to-wallmirrorsingymsanddancestudiosmightstopwom
[originaltext]Wall-to-wallmirrorsingymsanddancestudiosmightstopwom
[originaltext]W:Hi,Fred.Whatareyoureading?M:Oh,thesearejustsomeboo
[originaltext]W:Hi,Fred.Whatareyoureading?M:Oh,thesearejustsomeboo
[originaltext]W:Hi,I’mnewhere,andIwaswonderinghowIcouldgetalibrar
[originaltext]W:Hi,I’mnewhere,andIwaswonderinghowIcouldgetalibrar
[originaltext]FourgunmenhavebeenkilledastheIndianmilitaryhindered
随机试题
Readthearticlebelowtellingaboutbasicknowledgeofsharestransaction.For
(1)SinceWorldWarIItheFrenchhavebeenvariouslysurprised,dismayed,ir
[originaltext]TelephonebooksintheUnitedStateshavewhite,blueandyel
维生素D缺乏性佝偻病骨骼X线改变哪项是正确的A.骨骺与干骺端的距离变小 B.骨
导致该起事故发生可能的间接原因有( )。A.井下探放水技术措施落实不到位 B
患者,女,25岁,已婚。停经54天,3天来阴道少量出血,色淡红,腰酸腹坠隐痛,头
蜜甘草长于治疗的病症是A.脾肺气虚,食少便溏B.痰热咳嗽,咽喉肿痛C.体虚易于感
就目前的技术水平而言,下列航测数字化生产环节中,自动化水平相对较低的是( )。
患者男性,35岁。滞留。X线片示横位埋伏于处并与其影像重叠。拔除埋伏牙时要特别注
卵巢肿瘤最常见的并发症是( )。A.蒂扭转 B.破裂 C.囊性变 D.恶
最新回复
(
0
)