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

??????????2?14??????????????? (?? ???)???14??????,?????2?????8????????,?????50????????13??,????5.3??,????75%?

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

????,????????????770????,???1????????????10????????????????????1???????????22.5?????6????????,?????????????,??????????????????????

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

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

???,?????????????????????3?,??????????7500????????????,??????95%???????,???

????????,????????96.8%,????????2.2%,???????????????????????1%,????

????????????,??,?????????????,?????????????????,?????,???????????????????????????????(??)