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

2?????????

3?80?????

4????????

5???????????

?????????12???19??? (???? ????????????? ??)19??,?????????????????“?????????????????”???,?????????????

????,??,?????????????????????“1+N”?????

?? (??)

????????????????????????????,8???????“??”??????????????????????????,?????,?????????????????,???“??????????”????“???”???“????”,???????????????????????????????????,?????????????????????????????

????????????????????,???,???,?????????????????????????,????????,????????????????????“???????????????????”?????,????(??????????)

?????:?????????????????????