首页
登录
职称英语
We all know that it is possible for ordinary people to make their homes on t
We all know that it is possible for ordinary people to make their homes on t
游客
2024-01-17
42
管理
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. [br] 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://tihaiku.com/zcyy/3371294.html
相关试题推荐
Todayanyonewillacceptmoneyinexchangeforgoodsandservices.Peopleus
Todayanyonewillacceptmoneyinexchangeforgoodsandservices.Peopleus
Childrenandyoungpeopleareattheheartofsociety.Agoodeducationenab
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Extensivenewstudiessuggestthattheworldhasmadeextraordinaryprogress
Extensivenewstudiessuggestthattheworldhasmadeextraordinaryprogress
随机试题
Earthquakes【M11】AttwominutestonooninS
[originaltext]W:Hi,Jim.Whatareyoudoing?M:Oh,hi,Linda.I’mworkingon
Thefollowingwritersallbelongtothe"AngryYoungMen"EXCEPTA、JohnOsborne.
【T1】近日《牛津词典》公布了2019年度词汇——“气候紧急状态”(declare)。这一词汇的使用率在2019年增加了100倍。据称,当人们谈论气候
由于业务发展的需要,甲公司与乙公司签订一项转让协议,计划将生产A产品的生产线出售
即使一国的自主性交易不能达到平衡,该国的国际收支在性质上也可能是平衡的。()
我国的成语很多来源于含有历史人物、历史事件和那个时代的社会生活的典故。下列选项中
根据动机的意识水平,可以将动机分为( )的动机A.原始的与习得 B.生理的与
肌牵张反射能使 A.受牵拉的肌肉发生收缩 B.同一关节的协同肌发生抑制 C
下列属于项目管理机构负责人的权限的有()。A.参与组织对项目各阶段的重大决策
最新回复
(
0
)