——How long have you been going to in Tanggou Senior Middle School？

——More than two years.

——So it will be less than one year           you graduate from this school.

A．when

B．that

C．before

D．since

以下关于单板配置槽位的说法正确的是（）

A、OTU单板只能配置在OTU子架上

B、OA单板只能配置在OA子架上

C、CA单板只能配置在TMUX子架上

D、OMU单板只能配置在OTU子架上