A.36.3%MAC B.63.4%MAC C.47.0%MAC
A.29% B.34% C.22%
A.客艙乘務(wù)員為旅客進(jìn)行例行服務(wù)時(shí)的走動(dòng) B.燃油消耗 C.水平安定面配平調(diào)整