–You are really crazy about music!

– Sort of. I always find in music _____ peace which is missing in _____ world full of challenges.

A．/; the

B．/; a

C．a; the

D．the; a

腓神经瘫痪的最常见原因是（）

A.坐骨神经单神经病

B.作业性蹲坐

C.L神经根病

D.腓神经创伤

E.运动神经元病