???????????????“?????????”,???????,??“????”???????

?????????????????,????,????????,???,?????????“???????”?

????????????????,?,????????

?????????,????????????????????????????????,??????????????????????,????????????,?,?????“??????????????????”???????????????????,???????

??????,???????“???????????????????????????”,????????????“??”????????,????????????

??????????,???????????,???????“??”?

????,???????????“?????????”,?????????,????????????“??????????????????????????????????”??,?????

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

“??????”????

?? ???????????100?????“?????”?

????:1???????:????SN????

2????50???????

3?????????

4??????????

5??????

???????????????“?????????”,???????,??“????”???????

?????????????????,????,????????,???,?????????“???????”?

????????????????,?,????????

?????????,????????????????????????????????,??????????????????????,????????????,?,?????“??????????????????”???????????????????,???????

??????,???????“???????????????????????????”,????????????“??”????????,????????????

??????????,???????????,???????“??”?

????,???????????“?????????”,?????????,????????????“??????????????????????????????????”??,?????

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