問題詳情
37. Which mask can be used again?
(A) A mask which is worn for ten hours by the same personwhile in the hospital.
(B) A mask which is exposed to UV light for 30 minutes andworn by another person.
(C)A wet mask which is put into the middle of the mask cover.
(D)A dry mask which isn’t used for over six hours and is wornby the same person.
(A) A mask which is worn for ten hours by the same personwhile in the hospital.
(B) A mask which is exposed to UV light for 30 minutes andworn by another person.
(C)A wet mask which is put into the middle of the mask cover.
(D)A dry mask which isn’t used for over six hours and is wornby the same person.
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
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