People have lots of problems living in the central Australian desert, ____ the lack of water is the

题目简介

People have lots of problems living in the central Australian desert, ____ the lack of water is the

题目详情

People have lots of problems living in the central Australian desert, ____ the lack of water is the most serious one.
A.of whichB.whichC.for whichD.where
题型:单选题难度:偏易来源:不详

答案

A

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