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

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???,?????????? ????????????:????