单项选择题
Doctors say anger can be an extremely damaging emotion unless you learn how to deal with it. They warn that angry feelings can (56) heart disease, stomach (57) , headaches, and (58) cancer. Anger is a normal (59) that all feel (60) . Some people express anger (61) in a calm,reasonable way. Some people (62) with anger and scream and yell. But other people keep their anger (63) . They can not or will not (64) it. This is called repressing anger. (65) years many doctors thought that (66) anger was more dangerous to a person’s (67) than expressing it. Doctors said that (68) the feeling to express the anger only makes the feeling (69) . And this can lead to many (70) problems. Doctors thought a person could (71) these problems by telling the anger (72) , by expressing it freely. But recently some doctors (73) this. They said that people who (74) anger repeatedly and explosively become in fact (75) angry.
70(). A.technical
B.medical
C.scientific
D.systematic