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

2?????

3?????qt??????

4?????????

5?????????

???????8????8????????? (?? ??)?????8?,??????????????????????????????????4000???

???,?24??,????????30???

?????????,???????????????????,?????????????500???????,????????42??????????,???????????8???????????????,??????????????????????3??;?????????????17????,??3?;?????????15??,?????;????????????????????????????????????2??????????????????????????????????????????????

????????????,???????????????,????????,????????;?,?????????????;???,???

????????????????,??4000??????????????????????,???,???

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