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
In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each
In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each
admin
2019-01-08
55
问题
In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each blank. The passage will be read only once. Remember to write the answers on the answer sheet.
What is hydroplaning?
It may happen on the following occasions:
a【D1】______moves too quickly along a wet road:
a layer of water accumulates【D2】______:
they lift up and lose traction:
the driver【D3】______.
What actions has NASA taken?
They【D4】______a lot of data.
They produced a【D5】______.
They published the equation【D6】______ , along with information about the【D7】______
of water depth,【D8】______ , tire tread, and vehicle weight on hydroplaning risk.
Safety tips
Use well-treaded, fully【D9】______tires.
Do not slam on the【D10】______if you skid on wet pavement.
【D8】
In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each blank. The passage will be read only once. Remember to write the answers on the answer sheet.
Hydroplaning happens when a vehicle moves too quickly along a wet road. A layer of water accumulates under the tires: they lift up and lose traction: the driver loses control.
Now, what does NASA have to do with hydroplaning? Here’s a historical look at the science story. Hydroplaning is a relatively new phenomenon for humans, given that the combination of high speed and smooth pavement that’s necessary has only fairly recently become possible.
In fact, it wasn’t until 1957 that a tire treadmill study first experimentally demonstrated hydroplaning "in action". That study was motivated by airplanes. Hydroplaning had been causing a lot of problems for pilots landing on wet runways.
Here’s where NASA comes in. NASA scientists wanted to figure out what hydroplaning was all about. So, they collected a lot of data, and produced a mathematical formula to illustrate how quickly a vehicle could travel on a wet surface before entering hydroplane mode.
They published the equation in 1963, along with information about the effects of water depth, paving technique, tire tread, and vehicle weight on hydroplaning risk.
This publication offered several important safety tips. For example, use well-treaded, fully inflated tires and don’t slam on the brakes if you skid on wet pavement.
These suggestions may sound commonplace, and we now also know that vehicles with antilock brakes require slightly different hydroplane handling than those without. However, we can thank those NASA scientists from fifty years ago for getting the word out, and helping to keep all drivers— on runways and roads—safer on rainy days.
选项
答案
paving technique
解析
(该空为NASA所发布的相关信息第二点,因此填paving technique。)
转载请注明原文地址:https://kaotiyun.com/show/lOyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
Whatisthenumberthatisonehalfofonequarterofonetenthof400?
In,thissection,thereisonepassagefollowedbyasummary.Readthepassagecarefullyandcompletethesummarybelowbychoos
Findthenumberthatfitsbelowthe
Inthissection,youwillhearashortpassage.Thereare10missingwordsorphrases.Fillintheblankswiththeexactwordso
Whatisthenextnumberinthissequence;3,12,60,360,...?
Hostelbuildingsvaryfromcottagetocastle.Mosthavebeenadaptedtohostelusethoughsomehavebeenspeciallybuiltforthe
Hostelbuildingsvaryfromcottagetocastle.Mosthavebeenadaptedtohostelusethoughsomehavebeenspeciallybuiltforthe
Hostelbuildingsvaryfromcottagetocastle.Mosthavebeenadaptedtohostelusethoughsomehavebeenspeciallybuiltforthe
随机试题
黄金作为各国货币定值标准的国际货币体系有()。
用方丝弓矫治器远中移动上尖牙后,剩余间隙位于上颌侧切牙的远中,左右各2mm,此时尖牙已建立中性关系在闭合曲弓丝上,增加后牙支抗的措施中不包括
下列配伍中,属“十九畏”的药物是()。
如果要缩小置信区间,在其他条件不变的情况下,必须提高对置信水平的要求。()
纳税人不办理税务登记的,由税务机关责令限期改JE;逾期不改正的,税务机关可以对其采取的措施是()。
注:房地产开发投资包括住宅、办公楼和商业营业用房。2013年1—6月,我国房地产开发投资中,中部地区投资占比为:
A、 B、 C、 D、 C
设二维随机变量(X,Y)的联合密度函数为f(x,y)=求随机变量X,Y的边缘密度函数;
Herparents______herletterlastweek.Theydon’tknowwhathashappenedto
(1)Someproductsrespondtoconsumers’needs;others,likeSony’sairboard,seektocreatethem.Likesendinge-mailsfromthep
最新回复
(
0
)