You are steaming in a westerly direction along the Gulf Coast.You see ahead of you a lighted buoy showing a red isophase light.Which action should you take().
Alter course to port and leave the buoy to starboard
B. Alter course to starboard and leave the buoy to port
C. Alter course and leave the buoy near by on either side
D. Alter course and pass the buoy well-off on either side
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江河、湖泊水位或者流量达到国家规定的(),需要启用蓄滞洪区时,得按照依法经批准的防御洪水方案中规定的启用条件和批准程序启用蓄滞洪区。
A. 分洪标准
B. 蓄洪标准
C. 防洪标准
D. 行洪标准
设标航道以外的可航浅水区()航道。
A. 不是
B. 也是
C. 不一定是
D. 可能属于