???:??????
?????????:????????????
????????!????1?1000????
????????????????????
????????????????????
???:???????????????
??«?????»:???????????
???????????????????:???
??«?????»:???????????
???care????????????????
??:????????????
???«?????»?5???“???”
???????????2.5???23.4?
???????:“????”?????????
?????“??”????????
??????:??3?????20?????
???:????????????????
????????????????????????
????????????:???????
A380??????????497???
?????????????9????????
??????:?????????????
????9.6????????????50%??
??????12??????????????
????:???????????????
?????????????????????