最大管电流选择受到限制的原因在于()
A.管电压
B.曝光时间
C.摄影距离
D.被照体厚度
E.X线管容量
参考答案:E
用所给词的适当形式填空。
1. Ping-pong is the _____ (popular) game in China .
2. The _____ (visit ) are from Qingdao and Yantai .
3. His _____ (strong) makes him proud .
4. Who _____ (win) this game last night ?
5. The people in the hotel come from _____ (Greek).
骨折功能复位的标准是()
A.旋转及分离移位必须完全矫正
B.向侧方成角与关节运动方向垂直一致可自行矫正
C.前臂双骨折要求对位对线都好
D.长骨干要求对位至少1/3,干骺端对位至少要达3/4左右
E.儿童下肢骨折短缩2cm以内可自行矫正