【简答题】I’m very tired. I _______ on the night shift for several weeks. A.worked B.had worked C.have been working D.have worked
【简答题】crescendo(cresc.)是表示( )
【单选题】How many men does your uncle _____ for him?
【判断题】表情术语“cresc.”代表渐强,“dim.”代表渐弱。
【单选题】根据旅游市场营销调研目标和要求的不同,可以划分为四类调研究,其中( )是最常见的调查类型