(2011·山东)Take your time—it's just ________ short distance from here to ________ restaurant.

A．/；the

B．a；the

C．the；a

D．/；a

正畸治疗中牙根吸收多少称为明显的根吸收（）。

A.小于0.5mm

B.1～2mm

C.大于3mm

D.0.5～1mm

E.大于6mm