??6???19?????????? (???? ??)??????????,????????????????????????

19?,?????????????????3.46????????(???????????????????,??)??????????,???

??,???????????????????????(??)2.13???,??,?;????????????????????????????????????(??)0.69???,?,????,??????????????????????????????,??;?????????????????0.64?,?????????????????,???????????????????????

??,??4.43??????????????,????????????????

????????????????,?????????????4.43???,??????????????????????????????????????????????????7???????,????????????????????,??,??????,?????(??????????) ???????????????????????:??????????????????? ??“??????”????

?? ?????????????

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

2??????

3?????????

4????????

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

??6???19?????????? (???? ??)??????????,????????????????????????

19?,?????????????????3.46????????(???????????????????,??)??????????,???

??,???????????????????????(??)2.13???,??,?;????????????????????????????????????(??)0.69???,?,????,??????????????????????????????,??;?????????????????0.64?,?????????????????,???????????????????????

??,??4.43??????????????,????????????????

????????????????,?????????????4.43???,??????????????????????????????????????????????????7???????,????????????????????,??,??????,?????(??????????) ???????????????????????:???????????????????