However, medicine has made tremendous progress in the last several hundred years. Today, it is possible to cure, control, or prevent hundreds of diseases. People live longer than they did in the past as a result of new drugs, machines, and surgical operations; Medical progress in the control of infectious diseases, improvements in health care pro-grams for mothers and children, and better nutrition, sanitation, and living conditions have given people a longer life expectancy.
As medicine has become more scientific, it has also become more complicated. In the past, doctors cared for patients almost single-handedly. Patients received treatment at home for most kinds of illness. Today, doctors no longer work by themselves. Instead, they head medical teams made up of nurses, laboratory workers, and many other skilled professionals. The care provided by such teams cannot generally be started at home. As a result, clinics and hospitals have become the chief centers for medical care in most countries.
23. Paragraph 2__________.
24. Paragraph 3__________.
25. Paragraph 4__________.
26. Paragraph 5__________.
A. In ancient tribes, treatment was based largely on superstition.
B. Today, extensive knowledge and sophisticated medical techniques make possible the cure, con-trol, and prevention of hundreds of diseases.
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