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

2????????

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

4???????

5????????

???(?????????):???????(10???12?????????)??,??,??????????????????????5?????

???23??,????????????30%??????????,????????????????????????10?,????????“?????????????”?

?????????????,?????????7???????????????,????????????1200???,???????27????42????????????????70??????80???,???40?2??????????????10???7?????42????

??,???????????????????????????????????,????????????70%?,????13???? ????????????:????