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
A、How long you stay in the rain. B、How strong the wind is. C、How many raindrops you get horizontally. D、How rapidly your front c
A、How long you stay in the rain. B、How strong the wind is. C、How many raindrops you get horizontally. D、How rapidly your front c
admin
2013-02-17
27
问题
Have you ever dashed across a parking lot in a sudden rainstorm? You might think that you’ll stay drier by running as fast as you can. But in fact, the faster you run, the more drops you’ll run into horizontally, soaking your front. You want to stay as dry as possible, so what should you do: walk or run? A scientist would break this problem into its simplest elements. If there’s no wind, you’ll only get wet from two directions—above as the drops fall on you, and in front as you move into them.The amount of wetness from above is determined by how long you stay in the rain. If you stay outside twice as long, your head and shoulders will get twice as wet. As far as your top is concerned, the faster you run, the better. Running faster means less time spent in the rain. The water you run into is another story. The faster you go, the more rapidly your front will collide with raindrops, but you’ll also spend less time running through them. As it turns out, no matter how fast you go, you’ll always hit the same number of drops from the front. If you slow down, you’ll hit them more slowly, but the total amount will be the same at the end of your trip. Putting the two parts together, top and front, it’s clear that running will indeed keep you drier than walking, but not by very much. It only keeps the top of your head and shoulders drier. Your front will be just as wet no matter how fast you run.
5.What decides the amount of drops that soak your front?
6. Which factor determines the amount of wetness from above?
7.What will happen to your front if you go faster in the rain?
选项
A、How long you stay in the rain.
B、How strong the wind is.
C、How many raindrops you get horizontally.
D、How rapidly your front collides with raindrops.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/GyI7777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayonthetopicofPoorStudents’RunningErrands.Youshouldwrit
Conventionalwisdomsaysthatitisbettertobealargecompanythanasmallonewhencreditistight.Biggerfirmshavemorer
Howcloseparentsaretotheirchildren______(对孩子的性格有很强的影响).
Personalityistoalargeextentinherent—A-typeparentsusuallybringaboutA-type【B1】______.Buttheenvironmentmustalsoh
Google’sPlanforWorld’sBiggestOnlineLibrary:PhilanthropyOrActofPiracy?Inrecentyears,teamsofworkersdispatche
A、Hewenttoafamousschool.B、Hewastaughtbyhismother.C、Hewastaughtbyhisfather.D、Hisparentsemployedagoodteache
Whyshouldanyonewanttoread______ofbooksbygreatauthorswhentherealpleasurecomesfromreadingtheoriginals?
A、Hehasjustquittedhisformerjob.B、HehasgraduatedlastJune.C、Heisapplyingforajob.D、Hehassomeworkexperience.C
A、Weshouldn’tuseanti-bacterialsoapanymore.B、Wemustwashourhandsreasonablyandscientifically.C、Weshouldwashourha
TheTajMahalistoopenonmoonlitevenings20yearsaftersecurityfearsendednightvisits.India’sSupremeCourtwillallow
随机试题
以下电气设备中,属于防火重点设备的有()。
各种悬吊灯具离地面的距离不应小于()。
英国国家标准(),日本国家标准(),美国国家标准()。
通过把多项式分解因式,把函数f(x)=ln(1+X一2x2)展开为x的幂级数,并给出收敛域.
治疗小儿衣原体肺炎首选的抗生素是()。
房地产权属档案是权属管理活动中形成的历史记录,不但具有专业性、动态性、法律性,还具有()。
管线共沟敷设时,不符合规定的是()。
下列说法中对税务机关职权表述正确的是( )。
商业银行有效的战略风险管理应当确保其长期战略、短期目标、()和可利用资源紧密联系在一起。
天地悠悠悬秤杆,百姓芸芸秤砣心。严纲纪、正作风是一场大手术,唯有___________才能___________。填入画横线部分最恰当的一项是()。
最新回复
(
0
)