羧甲基淀粉钠在片剂中作为崩解剂的主要崩解机制是（）
A.毛细管作用
B.产气作用
C.膨胀作用
D.酶解作用
E.改善药物润湿性
参考答案：C
The nurse is providing preoperative care to a client scheduled for an appendectomy. Which statement regarding pain control is most appropriate ？（）
A．"There's no need to ask for pain medication, you'll receive it on a schedule. "
B．"Take your pain medication after walking so that you won't feel dizzy. "
C．"Take your pain medication before your pain becomes intense. "
D．"Use as little pain medication as possible to avoid addiction. "
