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

2?????200??500????

3???????600

4??????????

5???????????

??????6???20????? (?? ???)?????????????????20???,??,?,19??????,3???

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?????????????????? ??????

???????????,????????????,????,?3???????4400??????????,???????????,?????????269??????,?1314????????????????????

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??????????,??,??????????????????????????,4??,????????7????????????????????,??????????????????????

????,19????????,?????????4???????????,????100???????????????300??????????(???)

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