????:1?????????:????qt??????

2???????

3???????

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

5??????????

??(??????????????):????(2?14??????????????)?,??????1?????,????,???

????,1?,???M2?????????318.52??????,???????7%,????????;1?????????,?????????7.06????????????,???????????????????5.13???????????????????????

???,??????????????????????12.7%??11.4%,??????????????????????????????“???”“???????????”????,??

1?????,?????????3.4%,???0.4?,???????,?????????,??? ?????:?????????