会议推广是一种（）的推广形式，且没有受到严格限制。
A.新潮
B.有效
C.常用
D.传统
参考答案：D
When I wanted to buy a computer, I saved as much as I could, and my mother the rest of the money.
A．kept up
B．held up
C．tool up
D．made up
花卉
