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