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

2??????????

3??????????

4????????

5?????

??????????????????2??17???????????? ?????????????????(????????????????“??????????”)17?,???????????37.7%???,??????????????????2????????????????

?????????????,?,?“??????”,??

???????????,?????35???????????,???????????????????5???????????????,???,?????????,????,?????????????

?????,??????????????????,??(54.3%)?????????,??????2?,???????????????????3.5?????????????

????????????????,??????,??,??????????????????(46.6%)??????????????

????????“???”??????,????????,?????12?17????12.5%??????????18.4%,???????????????????????????????????,?????????(?????????) ???????????:??????????????