以下属于老年病毒性肝炎特点的是（）.
A.多为HEV感染
B.黄疸深
C.持续时间长
D.淤胆型多见
E.预后好
参考答案：A, B, C, D
— When will you come to see me, Daddy?
— I will go to see you when you _____ the training course. [ ]
A. will finish
B. will have finished
C. are finishing
D. finish
包(package)是UML的______。
A) 结构事务 B) 分组事务C) 行为事务 D) 注释事务
