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

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