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
There is a range of activities which require movements of about one to four or five miles.These might be leisure activities, suc
There is a range of activities which require movements of about one to four or five miles.These might be leisure activities, suc
admin
2015-05-29
31
问题
There is a range of activities which require movements of about one to four or five miles.These might be leisure activities, such as moving from home to swimming pool, tennis club, the theater or other cultural centers, or to a secondary or more advanced school, or they might be movements associated with work and shopping in the central areas of cities.The use of cars capable of carrying five people at 80 mph for satisfying these needs is wasteful of space and most productive of disturbance to other road users.
The use of the bicycle, or some more modern derivative of it, is probably worth more consideration than has recently been given to it.The bicycle itself is a remarkably efficient and simple device for using human muscular energy for transportation.In pure energy terms, it is four to five times as efficient as walking, even though human walking itself is twice as efficient as the movement of effective animals such as dogs or gulls.It is still widely used, not only in some developing countries where bicycles are major means of people and goods, but in a few richer towns such as Amsterdam in Holland and Cambridge in England.
It usually gives inadequate protection from the weather, is not very suitable for carrying goods, and demands considerable muscular work to make progress against wind or uphill.It also offers its rider no protection against collisions with other vehicles.All these difficulties could, however, be greatly eliminated, if not removed, with relatively small changes in design.The whole machine could be enclosed in a plastic bubble which would provide some protection in case of accidents.It would be easy to add a small petrol or electric motor.A wide variety of designs would be possible.As in rowing, we might employ the power of the arms or the general body musculature, as well as those of the legs; more muscular exercise would be good for the health of many people in cities, and a wide use of bicycle like muscle-powered vehicles would be a useful way to ensure this.It could also provide ample opportunities for showing off by the young and vigorous.
More attention should be given to the bicycle as a means of transport because it is______.
选项
A、a very efficient and simple device
B、much cheaper than a car
C、widely used in Amsterdam and Cambridge
D、still used by rich people
答案
A
解析
本题的依据句是文章第2段的第2句话The bicycle itself is a remarkably efficient and simple device for using human muscular energy for transportation.从中可知A项为正确答案。
转载请注明原文地址:https://jikaoti.com/ti/JpJYFFFM
0
考博英语
相关试题推荐
Inthecaseofmobilephones,changeiseverything.Recentresearchindicatesthatthemobilephoneischangingnotonlyourcul
Howawfulitwouldbetobeacelebrity,alwaysinthepubliceyes,Celebritiesleadvery.stressfullives,nomatter【51】glamoro
Academicfreedomincludesthelibertyofindividualstoexpressfreelyopinionsabouttheinstitutionorsysteminwhichtheywo
Theamazingsuccessofhumansasa【1】istheresultoftheevolutionarydevelopmentofourbrainswhichhasled,amongotherthin
Obviously,thepercapitaincomeofacountrydependsonmanythings,andanystatisticaltestthatdoesnottakeaccountofall
Smallbusinessownersmustaccepttheburdensofentrepreneurship.Beinginbusinessforyour-selfrequiresyourfullattention
Smallbusinessownersmustaccepttheburdensofentrepreneurship.Beinginbusinessforyour-selfrequiresyourfullattention
Mountainbikingdemandshill—walkingstrengthaswellastrack-ridingskills.Initially,choosegentleroutesamongfamiliart
人们必须通过对现象的分析和研究,才能了解到事实的本质,因此需要科学。
Whowouldhavethoughtwewouldbecomeaplanetof"ologies"?There’sbiology,psychology,herpetology,etymology,andgeologyj
随机试题
在胎儿股骨超声测量中,下列哪种伪像是要注意的
可用来解救链激酶过量引起的出血的药物是
A.女孩8岁前有性发育B.多尿、低比重尿、烦渴、多饮C.闭经不育或溢乳D.青春期前生长激素分泌过多E.躯体发育迟缓,身材矮小性早熟症()
参演人员所承担的具体任务主要包括()。
不属于集中布局空间形态模式的是()
属于试探性的多元化经营的开始和策略性投资的资产重组方式是()。
假设甲将“小姐”乙某从歌厅诱出后,劫持并逼迫乙某带领甲到乙某居住处,洗劫财物。另将乙某扣押至第二日银行开门营业时,挟持乙某到银行取出存款方才罢休。则甲的行为应当如何定罪处罚?()
下列关于外部排序说法正确的是()。
联系实际。试述对教师专业素质的基本要求。
法与原始习惯的区别是什么?
最新回复
(
0
)