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Living in the central Australian desert has its problems,______ obtaining water is not the least.a、for which b、to which c、 of which d、 in which

题目详情
Living in the central Australian desert has its problems,______ obtaining water is not the least.
a、for which
b、to which
c、 of which
d、 in which
▼优质解答
答案和解析
选C.of which 代替of the problems .
of 有“其中之一”的意思.