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

2???300??????

3?????

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

5??????????

12??28??,???????“??”???

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??,????????????“???”?6???28??,??????6??????????,??,?????????“?????????????”??????????,?,?????????12kg?

?,??“??”??,?????????“???????????????????”?“???????????”?????????,???????,???????????????????????“????????”?????????????????????,“????”??,??(?? ???????)

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