【单选题】Which stations may not transmit on the frequencies in which distress traffic is taking'place?
A.
Any stations taking part in the search and rescue operation under the coordination of the rescue Coordination Center or any stations appointed by them to coordinate distress traffic.
B.
Any stations in distress.
C.
The Rescue Coordination Center and any stations appointed by them to coordinate distress traffic .
D.
Any stations for which silence was imposed by the Rescue Coordinator during search and rescue opertions
【单选题】以下哪个选项不是邀请招标的条件 ?
C.
采用公开招标方式的费用占项目合同金额的比例过小
D.
项目受自然地域环境限制 , 只有少量潜在投标人可供选择
【判断题】单位产品的固定成本是不随产量的变化而变化的( )
【多选题】以下肿瘤标志物阳性相对应的疾病是正确的有
【单选题】将白色灯光作图形转动后,再左右摇动,表示( )股道号码信息要道或回示股道开通号码
【单选题】Which stations may transmit on the frequencies in which distress traffic is taking place?
A.
Any station not itself in distress
B.
Any station in distress
C.
All stations which are aware of the distress trafficn
D.
All stations for which silence was imposed by the Rescur Coordination Center or station appointed to coordinate search and rescue activities
【单选题】The rescue coordination center may()on stations which interfere with traffic.
【单选题】在盈亏平衡分析中,以下选项中为可变成本特点的是( )。
【单选题】Which stations may transmit on the frequencies in which distress traffic is taking place?
A.
All stations which are aware of the distress traffic
B.
Any station not itself in distress
C.
All station for which silence was imposed by the Rescue Coordination Center or station appointed to coordinate search and rescue activities
D.
Any station in distress
【单选题】不随产量增减而变化的成本是单位产品产量的()