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

2?????

3????????

4????

5???????

?????(6?????17???),??,????,?5???

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

????????5??????,??3.7%,????1.4??????,??????????????????0.51%,???????????,??,???????,??????????,??,??????,5???20.2%;???????,????18.7%????,“??”?????????,?????

????????????,??????????????,5?????????????,?????????????????,????????????????10%,?????????????????????4.4???????????????????,???,3D??????????????36.3%,??????33.6%,????17.3%,????????????????,???

???????????,???????????5???????,??8.6%???????????????????????????????????,??????????????????????????????????????????????????,???????,??????,????????,?????,?????????

???????????????“?????????????????,????????????????????????,?????”?????5???????????????,?????,?????????????????????,??????????????????

(???? ???? ?????? ??? ?????????????????? ?????? ?) ??????????:????????????