问题
选择题
I think ___ knowledge of the Internet is ____ must in our work today.
A．a…..a
B．the….an
C．the….the
D．/…an
答案
答案：A
a knowledge of 是固定搭配，意为：对….了解。must是名词,意为:必要条件。
搜题请搜索小程序“爱下问搜题”
I think ___ knowledge of the Internet is ____ must in our work today.
A．a…..a
B．the….an
C．the….the
D．/…an
答案：A
a knowledge of 是固定搭配，意为：对….了解。must是名词,意为:必要条件。