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单选题
船舶如遇海上天气、海况恶劣,风、气压、海浪等项目要求加密观测,时间间隔为()。
A
0.5h
B
2h
C
3h
D
1h
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shaft packingD
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单选题Your vessel is anchored in an open roadstead with three shots of chain out on the port anchor.The wind freshens considerably and the anchor begins to drag.Which action should you take FIRST().A
Drop the starboard anchor short with about one shot of chainB
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refreshing the airB
making person upsetC
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每半年C
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