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

2???????

3???150???????

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

5?????vx

??11????????????????22??? (?? ?????????????????????)??22????,9????????????105,??;??????1.2%,????????????14.4%,?????

??????,???????20????(?????????)???,???????????????,??????

?,??13????,???

?????,19??(????)??123,???,??????????18????????????????????????????????????????????,????????,19???????????????????(??)??????2.5%,??28.7%?????????????????????????????????????????????????????????????????

“??”??????????????????????????????????(??) ?????:?????????