6???70????????? ????????

????:???????:????

???????7???????15????????????????????? (???????? ????????)6?????????????????????????????15?????,6???????????????????????,70????,????????

?,??,6?????????????,?0.5%,???????0.2?????????????0.7%,?????????????????????0.6%,????????????????????0.2??????????????????????

??????,???????,????????????????0.4%,???????0.8?,?????????????,??????????????????0.2%???????0.5%????????????????????0.9%,????0.1???????????????0.9%,?????

????6??????????????????,????????????????,?????????,?????

??????????,6??????????????,70????????????????,?4?????????????????,???

????,???????????????????58???,????,????????????,??“???”???????,6??????????????????????????,??????????????????,???(????) ???????????????:???