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

2???????

3???????

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

5???????????

?????12????????????????2???? (???????? ????)11??,??,????????

??,?????11??,?????????????????????,11??,?????????????????30?????????????“U”???,??,???3%,?20%,??????????????60%????11?????????,30?????,???????????1-10?3.91??

???????????2???,11???????????????,??100??????????????????,???????????15%,???10???????????????20????????????????????11.7%,???26.3%?

??????????????????????????,11?????????????,??18763??????????????,????20???????????????????????,????????????????????1.5????“????????”,????????????????1.5??,?????,??????????11???????????????;??????11??50%?

???????,11????,????????????,??????????????????????????????????????,?7??????????????,????,?????????0.36%,?????2.40%?

?????????????,11????,???????????????300????23.4%,???????????????????????????????????

????,???????,11????3633.5??????????,??????????16.6%,??????,?????????9????44.3%???,???????????????????????????11???

??????????????9??????????????????????,10????????????“??????????????”,11????????????“??”???????????,????100?,??????

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