书名：new toeic test 金色证书文法
页数：p.161 第29题
题目：This is the position for ____ she applied in order to receive higher
pay because she was dissatisfied with her present salary.
A) that
B) which
C) what
D) where
疑问：答案是B, 但为什么A不行? that不是通用吗?
谢谢!