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问题: 模拟卷11-28

The new machine is a big improvement ______ the old one.
A. in B. on C. for D. to
请详细写出解题的过程和思路。

解答:

选择:D
对于旧机器而言,新的机器很大的改善。
to是:与…相比:
a book superior to his others.
一本比他其它的书写得好的书