As we all know, every minute _____ full use of ____ our lessons will do good to us students.

A．which makes; studying

B．when made; to study

C．that is made; study

D．that is made; studying

关于骨折的愈合，下列哪项不正确

A．多次手法复位，不利于骨折愈合

B．手术比手法复位，更能增加愈合机会

C．骨牵引过度可造成延迟愈合或不愈合

D．内固定和外固定不充分不利愈合

E．适当功能练习有利于愈合