??????,??ABO??????,????“???????????????,??????ABO???,????????????????????????”,??,???????ABO????????????????????????????????,???

????????? ???? ??????? ???

???:????

“???????”_????

?? ??????????ABO????????????????

????:1????????:????????????

2???????

3???????

4????????????????

5??????????

??????,??ABO??????,????“???????????????,??????ABO???,????????????????????????”,??,???????ABO????????????????????????????????,???

????????? ???? ??????? ???

???:????