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

2??????????

3??????????

4?????????

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

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

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

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

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

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

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