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

2??????????

3????????

4???????

5????100?

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

??3.46????,??,

?????????????????????????????????????????????????????????7?(??)2.13???,??,??;

?????????????????????????????4?????????????(?)0.69?,???,???,????????????????????????,??;

??????????2??????????????0.64?,????,??????????????????????

(?????????? ?? ???????) ???:???