Groups that have an indirect influence on a person's attitude or behavior can be a part of his or her reference groups.
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When Ketan went to college he had a burning desire to join a social fraternity(兄弟会); for Ketan, the fraternity would be a dissociative group.
A. 对
B. 错
荆芥、防风的共同功效是。但荆芥又具有，， 的功效；防风又具有，的功效。
A person's position in a group is defined in terms of role and status.
A. 对
B. 错
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