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

2??????????????

3???????

4??????????

5?????????

2???21???,??????????,?????????????????????????

??,??????,??????????????????“???????”?,?????????????,?????????,?????,??????????????????????????????????????????????????????

??,??,????34.1??,????????????????3?????????????????49%,??????51%,??93.6%,???????????????????????????????39%,?????????????13%????,??????(??)?????????????????(???????????? ????)

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