How many _____________ are there?  _____________ forty-three. [ ]

A. sheep, There're

B. sheeps, There're

C. sheep, There's

D. sheeps, They're

医患关系出现物化趋势的最主要原因是

A．医师对物理、化学等检测诊断手段的依赖性

B．医院分科越来越细，医师日益专科化

C．医患双方相互交流的机会减少

D．医师降低了对患者的重视

E．医患交流中出现了屏障