---Did you go to bed early last night?

----No. I watched a _____ movie, so I didn't go to bed until 11 o’clock.

A．3-hours

B．3-hours’

C．3-hour’s

D．3-hour

可用于管网分流、合流或旁通处的各支路风量调节的风阀是（）。

A．蝶式调节阀

B．平行式多叶调节阀

C．复式多叶调节阀

D．三通调节阀