换药室里物体表面的细菌监测标准()。
A.≤5cfu/m2
B.≤10cfu/m2
C.≤15cfu/m2
D.≤200cfu/m2
E.≤500cfu/m2
参考答案:E
________in a white uniform,he looks more like a cook than a doctor. [ ]
A. Dressed
B. To dress
C. Dressing
D. Having dressed
疑有上颌骨骨折时,最常用的X线检查方法是()
A.上颌前部片
B.华特位片
C.许勒位片
D.颅底位片
E.曲面体层片