Doctors see a connection between increase amounts of leisure time spent______ an

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问题 Doctors see a connection between increase amounts of leisure time spent______ and the increased number of cases of skin cancer.

选项 A、to sunbathe
B、to have sunbathed
C、having sunbathed
D、sunbathing

答案 D

解析此题考查非谓语动词的用法，spend 后应接动名词，本句意为：医生们注意到日光浴时间的增长和皮肤癌数量增长之间的关系。

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