单项选择题
| Before 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 (67) of transportation in all of the United States. It has completely (68) the horse as a means of everyday transportation. Americans use their car for (69) 90 percent of all personal (70) . Most Americans are able to (71) cars. The average price of a (72) made car was, 500 in 1950, 740 in 1960 and up (73) 750 in 1975. During this period American car manufacturers set about (74) their products and work efficiency. Meanwhile, the yearly income of the (75) family increased from 1950 to 1975 (76) than the price of cars. For this reason, (77) a new car takes a smaller (78) of a family’s total earnings today. In 1951 (79) it took 8.1 months of an average family’s (80) to buy a new car. In 1962, a new car (81) 8.3 of a family’s annual earnings. By 1975 it only took 4.75 (82) income. In addition, the 1975 cars were technically (83) to models from previous years. The (84) of the automobile extends throughout the economy (85) the car is so important to Americans. Americans spend more money (86) their cars running than on any other item. |