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

2????????

3?????????

4??????

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

??????????????6???21?? (????)21???????????,????,6?9????????19???????????????????,20?????,????

?,?21?????????16?,19?4????7?(?????????)4.4???????????,?????????3357?????,????190??,?2.8??(4.2??????)???????46?????????????(690??),?12??????21??,??????3785.5???????,??

???????????6????20???,???????????????? ??

?????????,6????????20???????????16???6?21????????16?,??0.1???6???????????21????16?,???????????????????????17.17?????,?0.33???????,?0.57???,??????????????????????????????????????,??

????6???????????????21??????????????????16?,????????????????????????????????????????????????????,?(??????????????????????????????)????????????????

21?????,?,???????,????????,????????????,???????,??,????????????????????????????,???????

?,22?????????????????,???????,22?????????25?,??,?????????????26?????,???????

??,??????,???,????????????????????????????????,?????????,??????????????????????????(?)

???:??