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
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future whe
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future whe
admin
2020-01-09
19
问题
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future.
The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types.
Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system.
When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car’s movements.
The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway.
In an automated highway system, all the driver needs to do is______.
选项
A、keep in the right lane
B、wait to arrive at his destination
C、keep in constant touch with the computer center
D、inform the system of his destination by phone
答案
D
解析
事实细节题。最后一段首句提到,司机将通过电话发出指令,把目的地输入系统。由此可见,司机可以使用电话来告知系统他的目的地,故选D。A、B、C在文中没有提及。
转载请注明原文地址:https://kaotiyun.com/show/gHp7777K
0
大学英语四级
相关试题推荐
A、Onsuppliestheybroughtwiththem.B、Onsuppliessenttothembyrescueteams.C、Onsuppliesleftatthemilitarybase.D、Not
A、Tokeepthefamoustimepiececlean.B、Tokeeptheclockworkingforfuturegenerations.C、Toreplacethebellofthefamousti
A、T-shirtsusuallyshrinkafterbeingwashed.B、PeopleshouldnotalwaysbelievetheadvertisementC、Thewomanwillnevergosho
A、Itdoesn’tneedthesamestandards.B、Individualstatesareresponsibleforeducation.C、Expertsdon’tagreewitheachother.
HowPsychologyCanHelpthePlanetStayCool[A]"I’mnotconvincedit’sasbadastheexpertsmakeout...It’severyoneelse’sf
Womenstillhaveanuneasyrelationshipwithpowerandthetraitsnecessarytobealeader.Thereisthisinternalizedfearthat
A、Spectators.B、Athletes.C、Fans.D、Cheerleaders.C文中提到拉拉队到底是一种娱乐,还是一种让人烦躁的干扰,体育爱好者的看法是不一致的(disagreeon),故C项正确。
Theonlysurvivorofashipwreckwaswasheduponasmall,uninhabitedisland.Heprayed【C1】______forGodtorescuehim,andeve
Theonlysurvivorofashipwreckwaswasheduponasmall,uninhabitedisland.Heprayed【C1】______forGodtorescuehim,andeve
随机试题
王某和张某是一对情侣,二人准备在春节前结婚。但是双方约定婚后5年内,彼此要忠诚,信守承诺。如果一方背叛另一方的感情:有外遇、嫖娼、“包二奶”或红杏出墙,要赔偿另一方5万元,并自动解除婚姻关系。二人到A市公证处,要求对彼此的感情进行公证,结果被拒绝。问题:请
患者恶寒发热,头身疼痛,无汗,鼻塞流涕,脉浮紧。其舌苔应是
脑脊液中葡萄糖含量减少最明显的是
患者,男性,40岁。突发胸痛1小时,伴胸闷,憋气。面色苍白,出冷汗。可能的病因是
患儿,男,2岁。麻疹恢复期,体温突然再次升高,出现嗜睡,惊厥等症状。护士考虑该患儿可能并发了
国家赔偿的主要方式是()。
某企业按“1/10,n/40”的条件购进一批商品,货款为100万元。假定一年按360天计算。若企业放弃现金折扣,在10天以后付款,则其放弃现金折扣的信用成本率为()。
研究人员在大肠杆菌外面缠裹了一种叫作β氨基酯的人工合成聚合物,形成一种“细菌胶囊”。随后,将其插入抵抗肺炎球菌的蛋白质疫苗。实验证明,这种胶囊能被动或主动地瞄准一种特殊免疫细胞,它能提升人体免疫反应,具有很强的抗肺炎球菌疾病的能力。研究人员指出,这种胶囊疫
Beingabletomulti-taskishailedbymostpeopleasawelcomeskill,butnotaccordingtoarecentstudywhichclaimsthatyoun
Astheonlywitness,he______(鼓起勇气与犯人对质).
最新回复
(
0
)