At the same time, medical and social science research began to indicate that retirement itself had detrimental effects.

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问题 At the same time, medical and social science research began to indicate that retirement itself had detrimental effects.

选项 A、damaging
B、magnificent
C、useful
D、relevant

答案A

解析 各选项的意思是:damaging有破坏性的,损害的。magnificent宏大的,庄严的,堂皇的。useful有用的,有益的。relevant有关的;适当的。画线单词detrimental的意思是:有害的,不利的。根据句意可知,应选择A。
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