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2???????

3?????????

4?????????????

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?????6???????16? (?? ?????)??16?,????????????????,??????????????

??????,???????????????“?,?????????????,????(6?????12?????)????????1.7??”???,??????,6????????12?,???????“??”,????,??????

??,??????,??????????????????????????????????????????,6?????????11???12???2.8??????1.7??????????????,??8.6???0.5??,?????4.6???????????????,?54????????????????(????????,????????????????????),???????14%?

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??,???2?6?,??,???,??,????????????6???????14??????,??????340??,???2??6?536????????????,??61%,?????????,????????A??0.05%?

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