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that area is rich in natural gas,----------- this place isn't.A.unlessB.althoughC.whileD.if

题目详情
that area is rich in natural gas,----------- this place isn't.
A.unless
B.although
C.while
D.if
▼优质解答
答案和解析
选C while是然而的意思,那个地方天然气很充裕,然而这个地方却不是,转折.unless是除非
aithough是尽管,不能放在句中,只能放在句首,if 是如果,是否的意思.