【单选题】—Shall we _____ to attend the meeting _____ at the end of this month? —Sorry, I don't know. [ ]
【判断题】当所有产地产量和销地的销量均为整数值时,运输问题的最优解也为整数值 。
【判断题】当所有产地产量和销地的销量均为整数值时,运输问题的最优解也为整数值.
【判断题】当所有产地产量和销地销量均为整数值时,运输问题的最优解也为整数值。
【单选题】— I'd like to book a room for tonight. — Sorry, sir, but we don't have any rooms _____ at the moment. [ ]
【简答题】n. [C] a mixture of different things that combine together well (不同事物的)融合