【单选题】They boy said ________ couldn’t he work out the problem but his teacher didn’t know how to do it.
【判断题】在国际结算中,货物是贸易双方进行结算的基础和依据。 ( )
【简答题】在国际结算中,货物是贸易双方进行结算的基础和依据。( )
【单选题】________ bad weather it is! We mustn’t go out.
【判断题】ETL模型数据流入流出的过程,该过程分为三层——源数据、数据仓库和数据分析。
【单选题】The students didn t manage to work out the problem ______ their teacher had explained how.
【单选题】_____ bad weather it is today! You can't go out. [ ]
【判断题】在国际结算中,货物是贸易双方进行结算的基础和依据。( )