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

2?????600??

3?????????

4?????????????

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

?12????19?????????????????? (?? ???????????????????)??????????19?????????????????,?????????????????

??????????????,??????,???????????????????49.9%??????????????????????,???,????

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

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

????????????,????????????,?????????????????????11????????44.3?????,????3.5%?(???????????????) ???:??????????