《中华人民共和国无线电管理条例》第三十二条规定，产生无线电波辐射的工程设施，可能对无线电台（站）造成有害干扰的，其选址定点可以由城市规划行政主管部门确定。
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When using a buoy as an aid to navigation which of the following should be considered?（）
A. The buoy should be considered to always be in the charted location
B. If the light is flashing，the buoy should be considered to be in the charted location
C. The buoy may not be in the charted position
D. The buoy should be considered to be in the charted position if it has been freshly painted
双向自动闭塞控制台的监督区间表示灯，当列车整列到达接车站，区间空闲后（），发车站又未办理追踪发车进路时灭灯。
A. 3s
B. 5s
C. 9s
D. 10
各路桥收费标准执行省（）部门的统一规定。
A. 物价
B. 税务
C. 财政
D. 交通
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