Nguyễn Thị Mỹ Dung
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Hỏi:
Many illnesses in refugee camps are the result of inadequate sanitation.
A. cleanliness
B. dirtiness
C. pollution
D. uncleanliness
Many illnesses in refugee camps are the result of inadequate sanitation.
A. cleanliness
B. dirtiness
C. pollution
D. uncleanliness