首页
登录
职称英语
[originaltext] Everyone enjoys the seaside. Beaches are ideal places for ga
[originaltext] Everyone enjoys the seaside. Beaches are ideal places for ga
游客
2023-09-08
86
管理
问题
Everyone enjoys the seaside. Beaches are ideal places for games, sunbathing and swimming. (29)A warm sun, a clean sea and a sandy shore are most people’s idea of the perfect holiday setting But Beyond these sunny, warm, shallow shorelines lie the cold depths of the sea. Here below the surface, where the sun’s rays and light quickly fade away, is a place as hostile to men as the black depths of space. Every 33 feet Below the surface the pressure on every inch of the human body increases by I atmosphere. (30)Down to 33 feet the body, s subjected to the same pressure we endure in the upper world without even noticing it--14.7 pounds to the square inch. At 600 feet down in the sea the pressure exerted by that great volume of water is over 280 pounds per square inch. The wonderful thing is that the human body can survive such pressure without ill effects. But pressure is not the only problem. There is also the cold and the dark ness. As you have just heard, the sun’s rays only reach a short way down into the sea. The water temperature falls and the light dints to complete blackness as you go lower down.
The sea is not an empty space--it is full of life, some forms of which are dangerous to men. (31) Of course the east problem of all is breathing. Every breath of air you take must be pumped to you from above or carried with you in tanks. You must be extremely careful when you come up again from the depths in order to avoid the painful and often deadly disease known as "the bends". When a diver only breathes compressed air, nitrogen builds up in his blood stream.
选项
A、33 pounds per square inch.
B、14.7 pounds per square inch.
C、600 pounds per square inch.
D、280 pounds per square inch.
答案
B
解析
细节辨认题 结合问题,找到关键词the normal pressure,on land,文章在第一段中间就提到了,人在陆地上所承受的压力是14.7 pounds to the square inch.因此本题选B项。
转载请注明原文地址:https://tihaiku.com/zcyy/2996818.html
相关试题推荐
[originaltext]Duringthepastdecadetherehasbeenamultifoldincreasein
[originaltext]Manyuniversitystudentsdislikehistorybecausethereislit
[originaltext]Ahouseisthemostexpensivethingmostpeoplewilleverbuy
[originaltext]W:Hello?M:Hello,Linda?W:Hello,Abruzzi.M:Look,whatarey
[originaltext]W:Hello?M:Hello,Linda?W:Hello,Abruzzi.M:Look,whatarey
[originaltext]W:Hello?M:Hello,Linda?W:Hello,Abruzzi.M:Look,whatarey
[originaltext]W:Youaretooyoungtosettledown.Whynotenjoyyourselffora
[originaltext]W:Youaretooyoungtosettledown.Whynotenjoyyourselffora
[originaltext]W:Youaretooyoungtosettledown.Whynotenjoyyourselffora
[originaltext]W:Youaretooyoungtosettledown.Whynotenjoyyourselffora
随机试题
You’dbetter______again.A、closethewindowB、closingthewindowC、toclosethe
GeneticallyModifiedFoods—FeedtheWorld?A)Ifyouwanttospar
Hehadgonetothereceptiondesk,________tocheckout.A、presumablyB、prelimina
Airlinecompaniesareresponsiblefortransportingyourluggage.Ifyoucannotr
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
下列关于火灾声光警报器的做法中,正确的有()。A.火灾自动报警系统能同时启动和
劳动争议与其他社会关系纠纷相比的特征包括( )。A.劳动争议的当事人是特定的
供应链金融是指在对供应链内部的交易结构进行分析的基础上,运用商品贸易融资的自偿性
根据《宪法》和法律的规定,下列哪些选项是不正确的?()(2012年)A.生命权
同一双变量资料,进行直线相关与回归分析,有A.r>0时,b<0 B.r>0时,
最新回复
(
0
)