問題詳情

40. Which mask could be used again?
(A) A wet mask which used by many people.
(B) A mask which is used for 12 hours in the high-risk places like hospitals.
(C) A dirty mask which used spraying alcohol on one side of the mask.
(D) A sterilized mask which is stored in a dry place for 3 days.

參考答案

答案:D
難度:計算中-1
書單:沒有書單,新增

內容推薦