关于不同性质药品的保管方法
应存放于水中的药品是
A．乙醚B．地塞米松注射液C．甘油栓D．金属钾、钠E．易发霉的中药材
参考答案：D
在常用磁盘中，（）。
A.外圈磁道容量大于内圈磁道容量
B.各道容量不等
C.各磁道容量相同
D.内圈磁道容量大于外圈磁道容量
Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is (71) . It determines how the various results are computed by the product and presents this information in the form of a (72) . and associated scenarios. The second is (73) , which determines the classes and their attributes; Then determine the interrelationships and interaction among the classes. The last step is (74) , which determines the actions performed by or to each class or subclass and presents this information in the form of (75) .
A. activity diagram B. component diagram C. sequence diagram D. state diagram
