下列概算中，属于设备及安装单位工程概算的是（）。

A.工业管道工程概算 

B.电气照明工程概算 

C.器具、工具及生产家具购置费概算 

D.通风工程概算

—We don’t permit____ in our school. Would you please put your cigarette out?

—Forgive me. I didn’t know.

A．to smoking

B．to smoke

C．smoking

D．having smoked