旅游乘数效应的形成以一定的( )为前提。 A.边际投 B.边际储蓄倾向 C.边际进口 发布时间:2017-01-25 19:31 │ 来源:www.tikuol.com 题型:单项选择题 问题: 旅游乘数效应的形成以一定的( )为前提。A.边际投B.边际储蓄倾向C.边际进口物资倾向D.边际消费倾向
题型:单项选择题 In the murder case, the suspect ______ all the charges against him, so the police had to collectnew evidence and ______ new strategies to prove that he was guilty of the crime. [ ]A. refused; employ B. rejected; apply C. denied; employ D. turned down ; use 查看答案
题型:单项选择题 当制冷剂的溶油性好时,应注意的问题有( )。A.油膜会影响冷凝器和蒸发器的换热B.压缩机的回油和冷凝器的换热C.压缩机的回油和压缩机启动前对压缩机曲轴箱的预热D.油膜会堵塞干燥过滤器 查看答案