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

2???????

3???150????????

4??????

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

?1?30??????????????????????????????? (?????????? ?????????)?????28??,???30???,???,??????????????120???

???????28??????????????,??10????????????????????????????????10???????????,??????????,74???????????????30?21??,????????????????,????

???????????,?30?????,?????????,????????????????????20???????????????

?,??????????????????,?????,?????????????????,???????,??????120?????

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