【单选题】火场通信的主要任务是:负责火场指挥部与前沿阵地,火场指挥部与调度指挥中心之间的( )联络。
【单选题】The term crowding-out effect refers to
A.
the reduction in aggregate supply that results when a monetary expansion causes the interest rate to decrease.
B.
the reduction in aggregate demand that results when a fiscal expansion causes the interest rate to increase.
C.
the reduction in aggregate demand that results when a monetary expansion causes the interest rate to decrease.
【单选题】The term crowding-out effect refers to
A.
the reduction in aggregate supply that results when a monetary expansion causes the interest rate to decrease.
B.
the reduction in aggregate demand that results when a monetary expansion causes the interest rate to decrease.
C.
the reduction in aggregate demand that results when a fiscal expansion causes the interest rate to increase.
D.
the reduction in aggregate demand that results when a decrease in government spending or an increase in taxes causes the interest rate to increase.
【多选题】以下属于城市通信工程规划的主要任务的是( )。
A.
确定规划期内城市通信的发展目标,预测通信需求
B.
合理确定邮政、电信、广播、电视等各种通信设施的主楼设计
【判断题】火场通信的主要任务之一是负责火场指挥部于前沿阵地,火场指挥部与调度指挥中心之间的通信联络。()
【判断题】化学岩及生物化学岩类岩石大多是在海、湖盆地中形成。