【单选题】— How many tomatoes do we need? — _____. But we have _____ milk in the fridge and we need some. [ ]
【单选题】We need to do it, ______? [ ]
【判断题】( )事件A的发生与事件B的发生毫无关系,则事件A和事件B为互斥事件。
【简答题】We need love. We also need to love. The person I love most is my mother.______ ______________________________________________________________________________ __________________________________________...
【单选题】当下列哪项成立时,事件A与B为对立事件()。
【单选题】(2006年)当( )成立时,事件爿与B为对立事件。
【单选题】When we are sleeping we______.