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

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