具有"合把"和"通天眼"特点的药材是（）
A.乌梢蛇
B.羚羊角
C.蕲蛇
D.蟾酥
E.金钱白花蛇
参考答案：B
水准仪主要由基座、（）、望远镜组成。
Which of the following nursing diagnoses would be most appropriate when teaching the mother of a toddler()
A. Activity intolerance.
B. Risk for injury.
C. Delayed growth and development.
D. Impaired mobility.
