46. Living in the western part of the country has its problems, ________ obt

46. Living in the western part of the country has its problems, ________ obtaining fresh water is not the least.
A) with which
B) for which
C) of which
D) which

C.这样的句子先要还原.
Living in the western part of the country has its problems, of which obtaining fresh water is not the least.
这是一个定语从句,of which里的which代指的是problems.
这句话的意思是说 生活在这个国家的西部有它的问题,获取新鲜的水都不是那些问题里最小的.
也就是说生活在西部问题多~~
在很多从句里,which前面都要加介词,这个时候你一定要把顺序弄对,还原成我们平时熟悉的句子形式.

你好！ a 我的回答你还满意吗~~