— David has made great progress recently. 

— ____, and ____. [ ]

A. So he has, so you have

B. So he has, so have you

C. So has he, so have you

D. So has he, so you have

正中神经损伤可出现的畸形()

A．“猿手”畸形

B．垂指畸形

C．爪形手

D．垂腕

E．“枪刺刀”畸形