In the United States, those people who want to become doctors must attend four years of college or university. They usually study biology, chemistry and other sciences. There are 125 medical colleges in the United States, but it is difficult to gain entrance m them. In 2001, about 35 000 students applied to medical schools in the United States, but only about 17 000 were accepted. A medical education is also very costly and it costs as much as 30 000 dollars for each year. After entering medical school, students spend the next four years studying only medical sciences. The first two years of medical school are spent mainly in class. The students learn about the body and all its systems. They learn about chemistry and medicines. And they begin studying diseases and how to recognize and treat them. Many students say the first year of medical school is the most difficult. They must re- member a great deal of information for example, many schools require that students remember the na
A. a medical competition
B. a treatment competition
C. a medical treatment
D. a medical residency
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