阿摩線上測驗
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試卷名稱：106年 - 106 國立交通大學_碩士班招生試題︰英文#124984
年份：106年
科目：研究所、轉學考(插大)、學士後-英文
39. How do lifeguards maintain their levels of concentration?
(A) They take a long break each day.
(B) They work no more than four days a week.
(C) They ask other lifeguards' opinions on their work.
(D) They switch among the duties involved in their job.
