（）is a roud-shaped underwater part in the front of the ship.The purpose is to cre-ate less friction with water so that the ship moves more easily.

A、The bulbous bow

B、The anchor

C、The bow thruster

D、The propeller

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更多“（）is a roud-shaped underwater part in the front of the ship.The purpose is to cre-ate less friction with water so that the ship moves more easily.”相关的问题

第1题

[单选题] By day，you sight a vessel displaying three shapes in a vertical line. The top and bottom shapes are balls，and the middle shape is a diamond. It could be a（）.

A、vessel trolling B、mineclearing vessel C、trawler D、vessel engaged in replenishment at sea

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第2题

[简答题] Which picture is Traffic Shape， why ？

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第3题

[] what is the advantage of policing opposite to shaping？

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第4题

[单选题] Your vessel is NOT making way，but is not in any way disabled.Another vessel is approaching you on your starboard beam.Which statement is TRUE（）.

A、Your vessel is obligated to stay out of the way B、The other vessel must give way，since your vessel is stopped C、You should be showing the lights or shapes for a vessel not under command D、You should be showing the lights or shapes for a vessel restricted in her ability to maneuver

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第5题

[简答题] what is Cisco provides three mechanisms for regulating or shaping traffic？

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第6题

[单选题] Which Cisco IOS traffic-shaping mechanism statement is true？（）

A、class-based policing is configured using the Modular QoS command-line （MQC） B、only the Frame Relay traffic-shaping （FRTS） mechanism can interact with a Frame Relay network， adapting to indications of Layer2 congestion in the WAN links C、Distributed Traffic Shaping （DTS） is configured with the police command under the policy map configuration D、both Frame Relay traffic shaping （FRTS） and virtual IP （VIP）-based Distributed Traffic Shaping （DTS） have the ability to mark traffic

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第7题

[] public abstract class Shape { int x； int y； public abstract void draw（）； public void setAnchor（int x， int y） { this.x = x； this.y = y； } } and a class Circle that extends and fully implements the Shape class. Which is correct？（） public abstract class Shape { int x； int y； public abstract void draw（）； public void setAnchor（int x， int y） { this.x = x； this.y = y； } } and a class Circle that extends and fully implements the Shape class. Which is&ens

A、A. Shape s = new Shape（）； s.setAnchor（10，10）； s.draw（）； B、B. Circle c = new Shape（）； c.setAnchor（10，10）； c.draw（）； C、C. Shape s = new Circle（）； s.setAnchor（10，10）； s.draw（）； D、D. Shape s = new Circle（）； s->setAnchor（10，10）； s->draw（）； E、E. Circle c = new Circle（）； c.Shape.setAnchor（10，10）； c.Shape.draw（）；