保证是指电子商业汇票上记载的债务人以外的第三人保证该票据获得付款的票据行为。
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翻译:Inadditiontobeingusefulasanexplorationtool,subsurfacemapsareanecessarypartofanyreservoirengineeringstudy;andpetroleumengineers,aswellasgeologists,mustbecompletelyfamiliarwiththeirconstructionandinterpretation.
ad后台新增展示转化率和点击转化率,那么展示转化率的计算公式是展示转化率=转化数/展示数。
A. 对
B. 错