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

??

????2???????22???? ???:???????????22?????????,??21?????,????

?,????????????????????,????????????????????B-1B?????????????????????????????????20?????,?????????????????,???,??,???????????????????????????????3????“????????”????

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

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

?????????

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

????????