??2???20??????????? (???????????? ????????)??????????????(NHS)20????????,??(2????????????10?????????????????16?)???1160??????,???????????????
????????,???????????????????(2?????3????????????????????9??),??????????22%,???????2012??????????????1%???????????????
?????,?????????????,??????????????,????????300??????
?,??,?????????????,?????????????,??
??????????????????????,??????,??????
?????????????????????,????????,?,????,??????????????,????,?????????(?) ???:??
????????????????:????????
??:???????????21????
????????????????????
??:?????????????
?????????5.5%??????1????
???!KD????????:?????5??
????????????????????????
????????????????????
?????????????????“??”
???!??????????:???????
?????????????????“1+3+7”??…
???:???????????????
MVP?????!?????????????
??WTI????50???????
«??»????-????DC??«???»
??21?????????????????4?
?????!???????????????
????!????????????????
????????????????7????
???????????????????
??????!????????:???3??
??WTI????50???????
?????????????10???????
???????????:?15.60%??????
????????:??????????