????:1???????30??:??????

2???????

3??????????

4????????

5???????100?????

?????????????6??18???????????????(????????????????????? ???????????????????????????????????)6??????????????18?,?????????,????????,?????????????????????????????????,???????????????????,????????????????????????

???????????,?33.7???,????56.8??????,???????????1?????????1???????1???????1?????

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

????????????????????????????2??????????,??6.82?,???????????????????????,???????????????????,???????????12.43??,????????,??

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

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

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

?????:?????