????:1???????????:????600?????

2?????????

3???????

4????????

5???????

?2?????????7??? (???????????? ???????????????????)????55??????????,????????????7??,???????????????(????)??????1000?,??31.1%?

??,????????????????(?????)??22???????????? ??????????

????,??(??)???,?????????22???????????????????????????????????????“????”??????

??????????????:“?,???????????????,??,?????????????,?????”

????,???“?”?,????(???????)????????,???????????????????7×24??????????????,???????,??,????

????,??????(????????????????????)????????4????????????,??????????????85??????(????)

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