7?????????????98%

????:???????:????????????

????????8??????8??????????(?? ??????????????)??????8??7??,7?????,??(???????????)?????????????,??????98%,????42%?????

???????,7??3.3????,?????????;???????????7??5000????????????

?????????,7??4.2????????,?????17%?????,??4????????????????4???????,????,??????????????????????????????

?,????7??????2.5???????,????24%?????,??????,????????????7????

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