关于比较级的一道选择题,求详解.

问题描述:

关于比较级的一道选择题,求详解.
这是道专四题
Western Nebraska generally receives less snow than _____ Eastern Nebraska.
A.in B.it receives in C.does D.it does in
运用什么语法结构,最好能补充说明.求英语高人.

我的感觉是than后面的句子用了倒装,因为按照正常语序应该是Western Nebraska generally receives less snow than Eastern Nebraska does.而此处将does提至主语Eastern Nebraska 之前,为了强调.而其他三个选项都有in所以都不对,这里作为比较的两个主语是Western Nebraska和Eastern Nebraska,所以不能加In,否则in Eastern Nebraska作了状语.