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

2??????????

3??????

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

5?????????

??12??19???????? ?????????????????????,??,??,???????????????????10?,????12~15????;????,???0?????????????????????????????,???????

??,?????????????,???????????????????????????????????????????????????????????,?????????????????????????????????????3~4????????????????0???,?????????,????,???

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??????19-21??,????,??????,??????????????????4~6?,??2~4?,??????,??????????????6~8?,???????10???????????????????????????????????4~5??,??6~8?????

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