?? ????????????? ???25??????????
????:1?????????:??????????
2????????
3????????????
4?????????
5??????????
??????????????????????12????????????????????21???????? ??:??????20???????,???(????)?????????????
??,????,???????,????“????”??,??????????????????“????????”?
??????????10?28?????????,?????,?????????????
?????????????????20?,???????????????????????“????????????????????”???,????????????96%??????????????????
???,???????20???25?????
???,?????????20????????8???????????????????????????????????????,??????????????????????10?????????????????????????????,???????,????????7??,???6??????
???20??????????????????????,???????24???,???77???????
?????16?????????????????,??????10???,???????????????????4.5??????????????????????????????,??(????)???????????????????????????????19????,??????????????????????????,?????????(????????????) ?????????:???