单选题 He said that the medicine the doctor gave him brought ______to his headache.
A. retreat B. recovery
C. relief D. relaxation

【正确答案】 C
【答案解析】[解析] 词汇意义辨识与使用。retreat意思是“退却”,recovery意思是“恢复”,relief意思是“减轻”,relaxation意思是“放松”,所以选项C是正确答案。