【单选题】---The meeting’s been put off until next week. ---Sorry, ______. Could you say it again?
【单选题】I'm sorry you didn't have fun ___ your day off. [ ]
【单选题】I'm sorry you didn't have fun _______ your day off. [ ]
【单选题】水冷式空气压缩机常以______效率为评价其经济性的标准。
【单选题】保险事故发生后,被保险人向保险公司索赔,保险公司自收到赔偿或者给付保险金的请求和有关证明、资料之日起( )内,对其赔偿或者给付保险金的数额不能确定的,应当根据已有证明和资料可以确定的数额先予支付。
【单选题】—Excuse me, could you turn off your radio, I'm doing my homework? —Oh, Sure.______ that. [ ]
【单选题】当鼠标通过Excel工作表的工作区时,鼠标指针为()。