【单选题】已知全集U={0,1,2,3,4,5,6,7,8,9},集合A={0,1,3,5,8},集合B={2,4,5,6,8},则(C U A)∩(C U B)=( )
【单选题】________ it is printed, this dictionary has been popular!
【简答题】川贝枇杷膏在美国热销事件给中国中药企业有什么启示?
【简答题】London has a new magazine. But it is not printed(印刷) on paper. Everyone who has a television can receive it because it is on TV. In order to read this magazine you have to have a decoder (解码器). Each p...
【简答题】已知全集U,集合A=1,3,5,7,9,C U A=2,4,6,8,C U B=1,4,6,8,9,则集合B=______.
【单选题】_____it is printed ,this dictionary will be very popular!
【判断题】仅办理列车会让和越行,必要时可兼办少量旅客升降作业的车站,在单线道路上称为会让站,在双线道路上称为越行站。
【判断题】仅办理列车会让和越行,必要时可兼办少量旅客升降作业的车站,在单线道路上称为会让站,在双线道路上称为越行站。
【单选题】仅办理列车会让和越行,必要时可兼办少量旅客乘降作业的车站在单线铁路上称为( )。
【判断题】仅办理列车会让和越行,必要时可兼办少量旅客乘降作业的车站,在单线铁路上称为会让站,在双线铁路上称为越行站。