????:1????????????:?????150??

2?????

3????????

4???????300????

5??????

??7??6? (?????? ?????????)6??????,?????????????????????200?????????????,????

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

????,???????????A321?,??????,??,?5???????8??????,?1200?????????????

????????????,??????????????????????????????????????????????????,???5?6??????????????

???????,???????,??8???????12???????,??,?20?,???2000?????????(????????????????????)

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