????:1?????600??:?????????

2?????

3????????????

4????????

5?????

“???????”??????

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

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

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

“????????????”???

??????????,????????????,?????,??……???,????????,???????,??????????,????“??????????????”??……?????????????????,“??????????”??????,?????????“?????????????”??,?????,“??????,?????????????”“???????????”“?????????20?????????????,????????”……

48???????????,????????????????,????????????

55?????:“???10??????,??????????,??,????1?????????????,????????,???????,???????3????,???,????,??????,???????”

????“????”???“?????”???

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

????????????“?????”??????????????

“‘????????????????’?????”????,“?????????”???,????????????,?????,??“???????????????”,?????????????????“????????”?????????????????????????????????,????????????????????

?????,“???????????????”???????:

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

????“?????”?????,???????????????????

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

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

?????,“??”?????,??????????

??“???????????”????????,???:????????????=???????÷???????????,??11??????12???????????????,??????1???????????,??????7?,?????????:???????=?????(7-1)÷?????????????????(8)=75%???????,??,?????90%?????100%,????85%????????????90%,????85%?????,??????????,????????????????

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

????????????“????”???

??????????,??????????:????,???????????;???????,???????????,?????;?????????,??????,?????;?,?,??????,?????“?????????”????????????,??????

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

???,????????,?????,???;

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

????,?????????,?????,????????;

?????,?????????,??????,?????????????,?;

???????,?????????,??,??????,????????????(???) ??????????????????????:???????