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

2???????

3???????????

4?????

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

????6??20??????? (??????????)???????????????????????????????????20?????,??,???????7?20??8???????,???

???,????????????31??,????70%????????????????????,?????60%,?????????74%?

???6????????????????????????,??????????,???????????72%;???????????????????????????????????????????,??????????????77%;??????????,???????????48%,?130??54.5???????????,???58%;????,??????????53%?76%?

??,??????????????????????????????????,?????????????????????????????,???????????????????????????????,??????????(???????????) ?????????:????????????