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

2?????????

3????????

4?????????

5??????????

?????6??????????????????????????7????? (?????? ??)??7??????????????????????????,?????????,??,??;????,??????????????????????

????,????????????,8????9?????,????????????,?????,?;10??13????????????,??????????????

??????,????????7?????????????????????8?????,?????16???(???????????)?5.2????,????????????(4.02????????????????????)??????29.4%,????????????????(3.13??)??66.2%,????4.17?,????(5.29???????)????78.8%???1??(????)???

??????????,??,???????,????????????????????????????;??,??????,?????,???

????????,???????????????,?“??”??,7??9???,??????????????????,???????(?) ??:??