Please write your composition _____line to leave space for the teacher’s correction.

A．one another

B．each other

C．any other

D．every other

阻碍骨折愈合的治疗方法为( )

A．反复多次手法复位

B．切开复位

C．持续骨牵引过度

D．固定不确定

E．功能锻炼