In dealing with public relations，we should make every effort to prevent the in personality.
A. conflict
B. contrast
C. contract
D. concern
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(答案→)A. conflict
B. contrast
C. contract
D. concern
解析：考察名词词义辨析。A冲突；B对照；C合同；D担忧，担心；句意：在处理公众关系的时候，我们应该努力预防个人之间的冲突。根据句意说明A正确。