????:1????????????:??11?????

2????????

3?????

4?????????

5???????????

????,??????????,??????????????????????

??,?????????????????,?????????????????42.3????????,??????15.3%,??????????50%,??????????????????????????????111????,??,???,???????7.3???

? ?????:?????????????11?????????????????,??????????????6400?????,??????????????35%,??????,???1/3,?????

??????,??,??????????????,??????????????????,????????????,??????????????????????

(??)

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