????:1?????200????????:?????

2????app

3?????????????

4?????

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

???????????8??30? (??? ?)???,??????6?1???????????,?????504???,?????????????32%,????,??,???,??????28.43?32.25???

5???????????20?????????????,????????????,??????? ????????????? ???? ????????

???????,????????4.5??,???????????1000????/???????????,?????100%,??????????????????,???

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