I’m concerned, the computer you want is not very expensive and you can afford it.

A．As far as

B．As long as

C．As much as

D．As well as

我国农业机械化面临的问题主要有（）

A.农机具老化严重

B.农机结构严重失调

C.农机化法规建设滞后

D.服务体系不完善

E.机械化的技术难度大