????:1??????????:??????200??500

2?????????

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

4?????vx

5????????

?????11?28?? (??)??(??????????????????????“??”)????28???????,????,??59???,??????30?????????????

???????????,????,???????????????????,??????,????????????????????,?????“????”,??

??????????????,?,??????????????????????????,??????,???????????40??????,??????????????????????,???387??,?????????????????20.6%?

?????,????????,??“??”“??????”??????“??”??????????????????,?????????????????57.8%??????????,?????????,?????????????,????5.3??????????????????????????

????,??1????10??,??????????32.8??,??????????4265??,???????????????????,?12.9%,??????????????14.8%,???????????480???(????????????????????) ??????????:???????