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

2??????v

3??????????

4?????

5????????

6?11??????????,“?? ??”?????

???????????????????,???,?????,?????“???”?????????????????,??????,????????????????????????????????????????????,??????,?,???50%???66%,?????????

???,???????379???????????????????,????????????,?,?????????????????,??????,??????????????????,??,??????????????

?????“???????”??????????????????????????????,?????????????????????5????6???????????????,???????????,?????????????“?????”???????????????????????“??”???????????4??????????,????“???????????????????”??????????????????,??????????????????“????????????”??????????????“?????????”,?????????????????????????,??????,????????????,??????,??????(?????? ????? ???????? ???)

???????:????