????:1?????vx:???????????

2?????

3???????

4?????,???

5?????

?????????:??,???????,??????“????”?

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

???????????????????,????????????,?????????12???????????????????

19??????????????????????????????????

2???6???,?????????????600????????????,??????????????19?,?????????????2???????????15????????,?????

?????:“??”???? ??????????

??,????????????“????”????????600???????????????,?1???????????,????,??????

?????,?????????????????1000???????????????????,????????????????????????100??,???

??:??????????????????+????????????????? ???????????

????????????????,????????“??????????????+??”???2?5??,???????????500???????,??7??????????,??

??????????“????”,????????????“????????????”,?????????????22????????,??????????????????2??????????

???“???” ????????

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

???????????,?????????????????????????????,??????????????????????????,???????????98%,???2?????????????3000?????????

??????,????????????????????????10????,?????????? ?????????:????