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单选题
欧洲引航协会（EMPA）对进出鹿特丹、安特卫普港的船舶建议的外海水道富余水深为船舶吃水的：（）
A
10%
B
15%
C
20%
D
25%
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单选题某航道上空有大桥净空高度15m，该地大潮升3.2m，小潮升1.0m，平均海面280cm，1200潮高为0.5m，则1200大桥实际水面上高度为（）。A
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单选题对于中国籍船舶，“营运中的检验”包括（）。A
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考题
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closeB
closingC
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