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

2?????Vx

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

4?????????

5?????????

??10???????????????24?????????? (?????? ??????)10????24??,????????????????????9?????????????????«???????»(??????????«??????????????????????????»),??????????????????????????????3??????,??????????????“?????”,???????????????????

??,«??»????“????”????,???36??(?)??????,???????????,?????????????????????????18???????36????,?????????????????,??,????????????????,?????????,??????????,???????“??????????????????”?????????????????????????????????????????????30%????,???,??

?,«??????????»??????????????,???????15%??????,???,?????,??????????????????????????????

???????????,??????15%??????????????????????????,????????,?????????????10?????????,??????????????,??????????????????6??,????,??

????,????????,?????????????60%??????????100%?

??????,??“????????????”???????????????????????????????????“??????????”??????????????,?????“???????????????????”????,????????????????????????????1.0-1.5????????(??) ??????????:????????????????????????????????????