单项选择题（ ）means an act of negotiation to sign on the back of a draft to transfer rights in the draft to another.A.Restrictive endorsementB.Blank endorsementC.Demonstrative endorsementD.Endorsement
单项选择题下列哪一项不属于地貌旅游资源？ A、贵州赤水丹霞 B、甘肃敦煌雅丹 C、九曲黄河 D、云南哈尼梯田
