A.預(yù)制旅游產(chǎn)品 B.委托旅游產(chǎn)品 C.組合旅游產(chǎn)品 D.定制旅游產(chǎn)品
A.25% B.30% C.35% D.40%
A.8 B.10 C.12 D.24