单项选择题
Which transport document of the following is not a goods title？（）
A.Bill of lading B.Multimodal transport documents C.Air waybill
单项选择题 Among the kinds of documentary credits subject to UCP600, from which can the beneficiary get two banks irrevocable undertaking to pay if complying documents are presented。（）
多项选择题 担保具有（）的特征。
多项选择题 我-行担保种类包括：（）。
