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.

答案:登入後查看
統計: 尚無統計資料

詳解 (共 1 筆)

#6813469
1. 題目解析 這道題目在問 lifeg...
(共 741 字,隱藏中)
前往觀看
0
0