2. 外语
  3. China now wheels into the car age, for car【C1】______as the most popular sort of transportation. While long before the China’s ne

China now wheels into the car age, for car【C1】______as the most popular sort of transportation. While long before the China’s ne

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问题     China now wheels into the car age, for car【C1】______as the most popular sort of transportation. While long before the China’s new era, people in the United States have travelled with their own cars. Even with the global rising cost of gas, private cars still remain the most【C2】______mode in USA, as it brings people the flexibility and freedom, and don’t【C3】______the schedule of public transport. It has completely replaced the bicycle as a【C4】______of everyday transportation. Americans use their car for【C5】______90% of all【C6】______business. Most Americans are able to buy cars. The average price of a【C7】______made car was 50 in 1950, 470 in 1960 and up to 750【C8】______1975. During this period, American car manufacturers set about【C9】______their products and work efficiency. As a result, the yearly income of the average family increased from 1950 to 1975【C10】______than the price of cars. For this reason【C11】______a new car takes a smaller【C12】______of a family’s total earnings today. In 1951【C13】______it took 8.1 months of an average family’s【C14】______to buy a new car. In 1962 a new car 【C15】______8.3 of a family’s annual earnings, by 1975 it only took 4.75【C16】______income. In addition, the 1975 cars were technically【C17】______to models from previous years. The【C18】______of automobile extends throughout the economy【C19】______the car is so important to American. Americans spend more money【C20】______keeping their cars running than on any other item. Car dominates the Americans and is now spreading its great influences on Chinese lifestyle.
【C13】
选项 A、clearly
B、proportionally
C、percentage
D、suddenly
答案B
解析 语法知识及句意理解。此处需要用副词，先排除percentage(百分比，百分率)这个名词。该句大意是说在不同年代车价与家庭收入也按比例增加，故proportionally正确，意为“相应地，成适当比例地”。
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