1-10:DBCAACCABB
11-20:ABDDCADBDA

21-30:CCCADBACDC

31-35:CDAAD

1.无歧性

2.逻辑覆盖

3.链式

4.ACBDFHGPE

5.实体

6.2

7.6

8.4

9.(*p)

10.ABBA

11.void Base::fun()

12.virtual display()==0;

14.-A()

15.pList[top]=item