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

2???????

3?????KB?

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

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