— Is that the country clinic you often refer to?

— Right，just the one_________you know my father used to work for 10 years

A．that

B．which

C．where

D．as

ZY系列转辙机当滚轮在挤岔板下平面与挤岔组上平面的间隙应为（）.

A.0.2～0.4mm

B.0.3～0.5mm

C.0.5～0.7mm

D.0.5～0.8mm