我国的保税仓库的主要类型有( )。

A．公用型保税仓库

B．自用型保税仓库

C．专用型保税仓库

D．混合型保税仓库

He isn’t very successful ________a singer but he is quite known ________his music.

A．for;as

B．as;to

C．as;for

D．for;to