Someexpertsfeelthatcarsarecertaintofallintodisuse.Theys...
问题详情:
Some experts feel that cars are certain to fall into see a day in the not-too-distant future when all cars will be deserted and made useless. 36 They hold that the car will remain a leading means of city travel in the foreseeable future.
The car will undoubtedly change greatly over the next 30 should become smaller,safer,and more practical,and should not be powered by the gas engine. 37
Unless changes take place in the power system,the car in the future will still be the main problem in city traffic jams. 38
When the car enters the highway system,a small arm will drop from the car and connect with a rail,which is similar to hose(软管) powering subway trains joined to the rail,the car will become electrically powered from the system and control of the car will pass to a central computer. 39
The driver will use telephone to did instructions about his position and the beads for into the computer will find the best way and reserve space for the car all the way to the correct exit from the highway. 40 It is believed that an automated highway will be able to deal with 10,000 cars per hour,compared with the 1,500 to 2,000 carried by a present-day highway.
driver will be free to relax and wait for call that warm him of his coming exit.
r experts however think the car is here to stay.
car of the future should be for more pollution-free than present types.
e will be plenty of policemen on the highway to control the traffic.
suggested to this essential problem is the automated(自动的) system which seems to hold water.
computer will then monitor all the car's movements.
of the experts don's know what will happen in the future.
【回答】
BCEFA
知识点:七选五题型
题型:未分类
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