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

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

3???????200????

4?????????????

5?????????

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

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

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

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

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

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