备选答案在前，试题在后。每组题均对应同一组备选答案，每题只有一个正确答案。每个备选答案可重复选用，也可不选用。

青霉素与苯妥英钠药品配伍

A．出现混浊、沉淀、变色和活性降低
B．不发生任何变化
C．透明度不改变而效价降低的潜在性变化
D．现红色沉淀
E．出现褐色沉淀

A client with ulcerative colitis is chatting with the nurse. Which of the following statements indicates the client understands the lifestyle modifications he needs to make()

A. "I will have to stop smoking. "

B. "I can eat popcorn for an evening snack. "

C. "I may have coffee with my meals. "

D. "I am allowed to have alcohol as long as I only drink wine. \