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

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

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