The client was admitted with severe head injury resulting from a motor vehicle accident. The client is presently unconscious. To facilitate rehabilitation when the client’s condition allows, the nurse should

A. maintain limbs in the position of function.
B. apply restraints to arms and legs to control spasms.
C. exercise just the arms as the legs maintain their tone longer.
D. notify physical therapy as soon as the physician orders passive range of motion.

X线摄影用胶片可分为：①感蓝胶片：其吸收光谱的峰值在420nm。主要为标准感度的通用型胶片，适用于一般摄影中的大部分，性能适中，低灰雾高对比，可使骨骼、空气和造影剂之间对比增强。②感绿胶片（扁平颗粒胶片）：其吸收光谱的峰值在550nm。它是将三维卤化银颗粒切割成扁平状，以预期的方式排列，并在乳剂中加入了一层防荧光交叠效应的染料。③乳腺摄影用胶片：是一种高分辨率、高对比、对绿色光敏感的乳腺专用胶片。④高清晰度摄影用胶片：是一种高分辨率、高对比度胶片。特别适用于要求提供高清晰的图像、显示组织微细结构信息的四肢摄影。

关于乳腺摄影用胶片叙述错误的是（）

A.也称正色片

B.为单面乳剂结构

C.采用扁平颗粒技术

D.不利于放大摄影

E.荧光交叠效应低