第2部分：阅读判断（第16～22题，每题1分，共7分）
下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提 供的是正确信息，请选择A;如果该句提供的是错误信息，请选择B;如果该句的信息文中没有提及，请选择C.
Health Care in the US
Health care in the US is well-known but very expensive. Paying the doctor's bill after a major illness or accident can cost hundreds of thousands of dollars.
In the US， a person's company， not the government， pays for health insurance.
Employers have contracts with insurance companies， which pay for all or part of employees' doctors' bills.
The amount that the insurance company will pay out to a patient differs wildly. It all depends on what insurance the employer pays. The less the boss pays to the insurance company， the more the employee has to pay the hospital each time he or she gets sick. In 2004， the average worker paid an extra US$558 a year， according to a San Francisco report.
The system also means many Americans fall through the cracks （遭遗漏）。 In 2004， only 61 per cent of the population received health insurance through their employers， according to the report. The unemployed， self-employed， part-time workers and graduated students with no jobs were not included.
Most US university students have a gap between their last day of school and their first day on the job. Often， they are no longer protected by their parents' insurance because they are now considered independent adults. They also cannot buy university health insurance because they are no longer students.
Another group that falls through the gap of the US system is international students. All are required to have health insurance and cannot begin their classes without it. But exact policies （保险单） differ from school to school.
Most universities work with health insurance companies and sell their own standard plan for students. Often， buying the school plan is required， but luckily it's also cheaper than buying direct from the insurance company.
16 In the US， a person's company buys him or her health insurance
A Right B Wrong C Not mentioned
17 All employees in the US have the same kind of health insurance.
A Right B Wrong C Not mentioned
18 In 2004， most of the unemployed in the US were women.
A Right B Wrong C Not mentioned
19 In the US， graduated students with no jobs can buy university health insurance
A Right B Wrong C Not mentioned
20 All international students in the US have to buy health insurance
A Right B Wrong C Not mentioned
21 The international students in the US work harder than the American students
A Right B Wrong C Not mentioned
22 The health care system_ in the US takes care of everyone in the country.
A Right B Wrong C Not mentioned