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

2???????150??

3???????

4??????50???

5?????929598???

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

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

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

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

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