?? ?????????8?? ?????????2.2???
????:1???????????:????????
2??????????????
3???????
4???????
5???????
???????????9????19??????????????? (??? ?)???????????19???,??????8??????,????2.2??(????????,???????)?
???????????????,??20??«??»«??????????»?????,???2.2???
??????????????????,??,??????,???????????????????????
?47?????????????,??????????????????????????????8????
??????????,???8??,???????????????????????????(?????) ????????????????????????????:?????????