问题
单项选择题
We need to have factual knowledge ( ) our marketing strategy.
A．on which to base
B．which to base upon
C．to which base
D．and based on
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
We need to have factual knowledge ( ) our marketing strategy.
A．on which to base
B．which to base upon
C．to which base
D．and based on
参考答案：A