首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
We all know that it is possible for ordinary people to make their homes on the equator(赤道), although often they may feel uncomfo
We all know that it is possible for ordinary people to make their homes on the equator(赤道), although often they may feel uncomfo
admin
2016-04-30
29
问题
We all know that it is possible for ordinary people to make their homes on the equator(赤道), although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole(北极)——we know that it is not only a dangerously cold place, but that people like you and I would find it quite impossible to live there. At the present time only the scientists and explorers can do so, and they use special equipment. Men have been trave lling across and around the equator on wheels, on their feet or in ships for thousands of years: but only a few men, with grea tdiff icul ty 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, it is not true about landings in the polar region, 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 move above the earth you can always be sure that you will not see a cloud in the sky as far as your eyes can reach. In the tropics(热带), on the other hand, you are not certain to keep clear of bad weather even at such heights as 18, 000 or 20, 000 meters.
Aeroplanes 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 aeroplane, which is already at a good height when it reaches the polar region and so does not to climb, while at the same time cold air keeps the clouds down low.
It is a delight to fly at the Pole because there( ).
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
事实细节题。第一段最后两句提到热带上空不能确保不遇到坏天气,而北极上空的情况与之相反,所以选C。
转载请注明原文地址:https://kaotiyun.com/show/N8RO777K
0
成人本科学位英语
相关试题推荐
Only11people______theshipwreck.
Inthisway,betterqualityproductsatgoodvaluesarecontinuallybeingbroughttothepeopleofallincomegroups.
Lookingbackonmychildhood,Iamconvincedthatnaturalistsarebornandnotmade.Althoughwewerebroughtupinthesameway
Scientistsfindthathard-workingpeoplelivelongerthanaveragemenandwomen.Careerwomenarehealthierthanhousewives.Evi
IfyouhaveachancetogotoFinland,youwillprobablybesurprisedtofindhow"foolish"theFinnishpeopleare.Takethe
Ifwewereaskedexactlywhatweweredoingayearago,weshouldprobablyhavetosaythatwecouldnotremember.Butifwehad
Somepeoplearguethatthepressureoninternationalsportsmenandsportswomenkillstheessenceofsport—thepursuitofpersona
Asglassofficeandapartmenttowershaveincreasedinthelastdecade,so,too,havecallstomakethemlessdeadlytobirds.
Anti-drugworkhasbecomea______ofattentionamongtheinternationalcommunitywiththespreadofdrugabuseintheworld.
OnNovember19,1863,AbrahamLincolnwenttoGettysburginPennsylvaniatospeakattheNationalSoldiersCemetery.TheCivilW
随机试题
法律规定的不得新建排污口的区域包括()
《公路工程质量检验评定标准》是进行桥梁施工质量评定的唯一依据。()
下列关于信息社会城市空间结构形态的演变发展趋势的说法中错误的是()
铁路营业线上增建桥梁,采用扣轨架设便桥及加固线路时,应对其线路进行(),便桥架设应保证列车通过的安全。
下列项目中,应当作为营业外收入核算的有( )。
下列关于实质性程序的说法中,错误的是()。
21101,9633,8624,7523,954,()
该求助者的主要症状是()。心理咨询师决定使用厌恶疗法时不妥当的做法是()。
关于化学键的下列叙述中,正确的是()。
航线:飞行
最新回复
(
0
)