?????????????????
????????????2??????????????????????15??? ?????????????????????,???14??????,????(NTSB)????????????????????????,????????????,????????????????“????????”??,???“???????????????”?
???,1?29??,??“????”??????????????,??,????,??????????????????67????????
????????????14?????,“?”??,?,??????
???,????,??“??”????????????,?????????,??????????????????????????,???????????????????
??????????,????????????,??????????????????“?????”????????????,??????,“????????????????????”???????????????????
????,???“?”??,?,???,???????
??????????????,??????????,??????????,??
?????,????????????????278?(85 ????),????????????????????????,??????????,“???”
??:???