【简答题】在四显示自动闭塞信号灯中绿黄灯是( ),表示运行前方有2个闭塞分区空闲。
【单选题】听力原文:M: I was wondering if it would be OK for me to miss the next class. I must go to visit a friend of mine who is in hospital at the moment. W: Of course, Vincent. I’m very sorry to hear about your ...
C.
Sales assistant and customer.
D.
Manager and officer clerk.
【判断题】如果使单自由度体系的阻尼增大,其结果是周期变短。
【单选题】听力原文:M: I was wondering if it would be ok for me to miss the next class? I must go to visit a friend of mine who is in hospital at the moment. W: Of course, Vincent. I'm very sorry to hear about your ...
C.
Sales assistant and customer.
D.
Manager and office clerk.
【判断题】由于保费的收取总是早于未来义务的履行,加之保险年度与会计审计年度不相吻合,对会计核算年度内收取的保费不能全部作为当年收入处理,而应按权责发生制原则,将部分保费以责任准备金的形式提存起来,作为未来履行赔偿或给付的资金准备,这种资金准备称为未到期责任准备金。
【单选题】我国成年人膳食中()产能营养素功能百分比最高。