[单选题]第三大题
ABefore the 20th century the horse provided day to day transportation in the United States.Trains were used only for long-distance transportation. Today the car is the most popular (1) of transportation in all of the United States.It has completely replaced the horse as a means of everyday transportation.Americans use their cars for(2) 90 per cent of all personal trip . Most Americans are able to(3)cars.The average price of a recently made car was $650 in 1950,$740 in 1960 up to $750 in 1975. During this period American car manufacturers set about(4)their products work efficiency. As a result,the yearly income of the (5) family increased from 1950 to 1975 faster than the price of cars. For this reason (6) a new car takes a smaller 10 of a family’s total earnings today. In 1951 proportionately it took 8.1 months of an average family’s (7)to buy a new car .In 1962 a new car (8)8.3 percent of a family’s annual earnings.By 1975 it only took 4.75 months income.In addition,the 1975 cars were technically superior to models from previous years. The(9)of automobile extends throughout the economy as the car is so important to Americans. Americans spend more money to(10)their cars running than on any other item.(10分)1. (A)mean (B)means (C)kinds (D)types
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