–Does it matter if I give it up this time?

-- It ____if you do. You won’t have ______chance.

A．does; the other

B．does ; second

C．does matter; another

D．does matter; the other

造成工作面刮板输送机下滑原因有（）

A、工作面有倾角

B、刮板输送机的本身的下滑分力

C、从上向下推移

D、以上都对