An unhappy childhood may have some negative effects on a person’s characters; however, they are not always ,
A. casual
B. ashamed
C. permanent
D. unfit
网友回答
A. casual
B. ashamed
(答案→)C. permanent
D. unfit
解析：形容词辨析。A随意地；B害羞的；C永久的；D不合适的，不健康的；句意：不幸福的童年也许会对一个人的性格有影响，但是这样的影响不总是永久存在的。根据句意说明C正确。