????:1???????,??:???????????

2?????Q

3?????

4?????

5????????

?????6??30?????????? (????????????????? ????????????????)30???,????,??????,5???????????????

?????????,??????,??????“???????”?

6???30?????,???????????? ????????????? ??????????????

30?????????????????????????,??,????????????????????????????,??????????????

???????????,?????????????????????70%,?????30%?

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

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

?,????????????????????????????????????5???????,9????????????????,18??

??????11???????????“??”?,4??“????”?

?“????????????”???“??”?????,???????????????“???”??????(?????????)

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