脓性指头炎的切开引流指征应是()
A.细菌毒性大
B.局部组织特异
C.脓腔压力大
D.脓液穿透骨膜
E.以上都不是
参考答案:C
The professor has received the letter ____ to give a lecture in frication Institute.
A.being invited
B.to be invited
C.inviting him
D.invited
执业医师和执业助理医师开的处方必须遵循的原则是
A.科学的B.合理的C.经济的D.科学、合理、经济的E.规范的