????: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???,?????

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