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

2????????????

3?????600?????

4???????

5???????

10????10????,?,???????????10????????18??????????????????????????????????????????19?????????????????????????,????“??? ??”?

????,????????“1+3”?????????????,???1??????????????????????????????????????????????3???;??????????????????,??????????????,????????????????,????????,????????5?????????????(????)??????

?,?????,?????????????????10??,????????3??(????? ???????????? ??????? ??????????)

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