????:1??????95?98??:????????150??

2????????150???

3?????????

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

5???????

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

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

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

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

????:????