题目

阅读短文，根据要求完成下列各题。 Cars are important part of life in the USA．（1）Without cars most people feel that they are not rich enough． And even though a person doesn't have much money, he doesn't really feel that when he has a car． Do you know anything about Henry Ford? He first started to make cars in large numbers．Maybe he didn't know how much the car was going to be to American culture．（文化）．The USA was made a country on wheels（轮子）by the car．（3）And it helped make the USA what it is now． （4）车在美国变得相当普及 （5）列式计算．（1）4.8与12的积除以它们的商，结果是多少？（2）7.2与3.2的差去除11.5与9.5的和，商是多少？