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

2??????????????

3???????????

4?????

5????????

??6???19?? ???,??,???????????18???????????,???????????????????????????????????????,???,?????????????????????,?????????????????????????,????????????

???????????????,????,?????????????????????????8500???????,?????????????

??,??????????6????????????????,????????1.3??????,?142???3600????????????????,12?????????,??????????3700??? ???????????:?????????