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Withlesstrafficandfewerfactories,theairofthesuburbsismuchcleanerthanofthecity.[]A.thoseB.oneC.thatD.it

题目详情
With less traffic and fewer factories, the air of the suburbs is much cleaner than ________ of the city.
[     ]
A.those  
B.one
C.that  
D.it
▼优质解答
答案和解析
C