摘要： Shanghai’s car rental industry is growing so fast mainly due to . A. better cars supplied by producers B. fast service offered by car rental firms C. the increasing number of white-collar employees D. people’s growing interest in traveling during holidays Passage 40 The cost of medical care in the United States is very high. More time and money that doctors spend on their medical education is probably one reason for this problem. A visit to a doctor’s office costs from 15 to 50 dollars. It is almost impossible for people to pay for the medical care they need. Many people in the United States think that doctors are overpaid. Most doctors, however, disagree. They say that they were required to study medicine for a long time. Tuition for many years of medical education costs a lot of money. Doctors say that it is necessary for most medical students to borrow money from bank to pay their tuition. Because their money must be repaid to the bank, young doctors need to receive a lot of money for their work. So, they charge people high prices for medical care. Therefore, it is possible that the high cost of medical care in America is unnecessary, because high tuition is one cause of high costs. One way to lower costs would be to have medical schools that are free or have low tuition.

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