题目

英语 完形填空
Electric bicycles which run on battery—operated（电瓶）motors are winning over riders of ordinary bikes__41_their speed and quality.
They were first_42__in 1980s in China,but the selling was not very good.Today thanks_43__ improvements on battery quality,the electric bikes sell well.There are now more than 100 electric bicycles produces in China and 310,000 such bicycles were produces the year before last,Japan is another large__44_of such bicycle in the world with a total producing reaching 180,000.
_45___China is one of the largest producers of electric bicycles in the world.The _46__of its produces with mass production（大量生产） is actually small.
Electric bicycles are still_47___in China.Time is needed for people to become familiar with them and accept them,Each bike’s price of between2000 and 3000yuan is still48___for ordinary citizens(民众) Although such bikes are quick,safe and__49___to operate,their batteries still have short comings不足).They weigh more than 10 kil

提问时间：2020-10-30

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