??????????1?????7?????????????????? (???????????????????????? ??)???????????????????,7????????????????,???????????(???“??”)B737???????????????????????????,?????1000??????,????2???,????????????????,???

7????????????????????,???(??)

?,????5?????????,??????????????,??????,???????????????????????????“?”?

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

???:????????????????????? “??????????????”_????

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

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

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

3?????wx

4?????????

5?????

??????????1?????7?????????????????? (???????????????????????? ??)???????????????????,7????????????????,???????????(???“??”)B737???????????????????????????,?????1000??????,????2???,????????????????,???

7????????????????????,???(??)

?,????5?????????,??????????????,??????,???????????????????????????“?”?

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

???:?????????????????????