1?3?????????,?2?????,????????????????????????8????,?????,??????“??”???????

???????,??????????????,???????,????“?????”,?????“???????”,??????????“??”??????,???????????????“??”???????????????????????????????????????????,?????????????????,????????????????????,???????????????,????,???????????90%??????,????,???????????????,???????????????30%??????

????????????????,?????12?????????,??6?,?????????????,???????????????,??????????????

(?? ?????????????? ???????)

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

??“??????”????

?? ????????????????????????

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

2?????????

3?????v

4????????????

5??????????

1?3?????????,?2?????,????????????????????????8????,?????,??????“??”???????

???????,??????????????,???????,????“?????”,?????“???????”,??????????“??”??????,???????????????“??”???????????????????????????????????????????,?????????????????,????????????????????,???????????????,????,???????????90%??????,????,???????????????,???????????????30%??????

????????????????,?????12?????????,??6?,?????????????,???????????????,??????????????

(?? ?????????????? ???????)

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