首页
登录
职称英语
[originaltext] Men have been traveling across and around the equator on whee
[originaltext] Men have been traveling across and around the equator on whee
游客
2023-07-26
51
管理
问题
Men have been traveling across and around the equator on wheels, on their feet or in ships for thousands of years, but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North Pole. So it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the equator. Of course, this is not true about landings in the polar region (which passenger airplanes do not make), but the weather, if we are flying at a height of 5,000 meters above the Pole, is a delight. At 4,000 meters and more above the earth you can always be sure that you will not see a cloud in the sky as far as the eye can reach. In the tropics, on the other hand, you are not certain to keep clear of had weather even at such heights as 18,000 or 20,000 meters.
Airplanes can’t climb as high or as quickly in cold air as in warm. Nor can clouds. In practice, this is an advantage to the airplane which is already at a good height when it reaches the polar region and so does not need to climb, while at the same time cold air keeps the clouds down low.
选项
A、planes fly higher than at the equator
B、the eyes can reach about 4,000 meters
C、planes are clear of bad weather
D、planes fly more quickly than at the equator
答案
C
解析
细节题。关键句是if we are flying at a height to 5,000 meters above the Pole,is a delight…see a cloud in the sky as far as the eye can reach.
转载请注明原文地址:https://tihaiku.com/zcyy/2871578.html
相关试题推荐
[originaltext]CopenhagenhasbeenthecapitalofDenmarkfor600yearsand
[originaltext]Interviewer:What’sthenameofyourcompany?Interviewee:TheAt
[originaltext]Interviewer:What’sthenameofyourcompany?Interviewee:TheAt
[originaltext]M:Ineedtousemorethanjustmymathskillsforthesequestion
[originaltext]M:Ineedtousemorethanjustmymathskillsforthesequestion
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]M:Vicky!Haveyouheardthenews?W:No,Sam.Whatdoyoumean?
[originaltext]M:Vicky!Haveyouheardthenews?W:No,Sam.Whatdoyoumean?
随机试题
《老子》(LaoTzu)又称《道德经》(TaoTeChing),是春秋时期的老聃所作,主要研究社会政治哲学和人生哲学。根据它的思想,中国古代产生了
a1=10×1.05-χ, a2=10×1.052-1.05χ-χ, a3=10×1.05-1.052χ-1.05χ-χ, 推出a10=10×1.0510
根据《汽车变速器修理技术条件》(GB5372-85)技术要求,变速器壳上各承孔轴
被别林斯基赞誉为“俄国社会小说的滥觞”的作品是()A.《罪与罚》 B.《穷人
女性患者,48岁。上消化道出血致失血性休克,接受补液治疗后血压75/45mmHg
下列关于资产的说法中,错误的是( )。 A.资产的所有权价值一般高于使用权价
共用题干 TheySayIreland'stheBestIreland
(2018年真题)社会工作者小李在检查低保户老江家的信息时,走访了他的邻居和他所
金融债券()的,经认购人同意,可免于信用评级。A:定向发行B:非定向发行C:
某公司承建一项城市桥梁工程,设计为双幅分离式四车道,下部结构为墩柱式桥墩,上部结
最新回复
(
0
)