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【题目】Two-fifths of people have reported that they get a sunburn ______ to “deepen” a brown skin, despite the fact that getting a painful sunburn just once every two years can increase the possibility of skin cancer.

A. on condition B. at present

C. by accident D. on purpose

【答案】D

【解析】

试题分析:考查短语辨析。A只要;B现在;C偶然;D故意地,句意:据报道,五分之二的人故意晒黑来加深棕色皮肤,然而事实却是每两年仅晒伤一次会增加皮肤癌的可能性。故选D

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