In relation to the turning circle of a ship，the term advance means the distance ______．

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• 1For working details ______ Admiralty list of Radio Signal

  A.refer

  B.see

  C.watch

  D.look

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• 2Every ship should hoist ______ when approaching and entering ports．

  A.its flashing light

  B.the ship's name

  C.its identification

  D.its signal letters

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• 3A vessel moored with two anchors，sometimes，at an exposed roadstead to ______．

  A.aid turning the ship

  B.obtain a fine bearing

  C.increase ship swings to wind or tide

  D.lighten the stress of anchor chains

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• 4We ______ at anchor in the roadstead till the evening．

  A.have to ride

  B.have to get

  C.have to put

  D.have to make

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• 5It is sometimes necessary to moor bow and stern to two mooring buoys in order to ______．

  A.avoid any swing in a restricted space

  B.shelter the ship from strong winds

  C.prevent to touch with other vessels

  D.make a convenience of cargo discharging

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• 6I have steerage way．It is said that ______．

  A.I am underway

  B.I am out of control

  C.I am not making way through the water

  D.I have the amount of movement forward which the ship needs to be steered properly

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• 7Vessels are warned ______ in the area enclosed by pecked lines owing to the existence of numerous telegraph cables．

  A.anchor

  B.to anchor

  C.not to anchor

  D.not to anchoring

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• 8Plain language is usually used on marine weather ______．

  A.forecasts

  B.observations

  C.analyses

  D.reports

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• 9As the temperature of an air mass decreases，the ______．

  A.absolute humidity（湿度） decreases

  B.relative humidity increases

  C.specific humidity decreases

  D.dew point rises

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• 10In the Northern Hemisphere，gusty winds shifting clockwise，a rapid drop in temperature，thunderstorms or rain squalls in summer (frequent rain/snow squalls in winter) then a rise in pressure followed by clearing skies，indicate the passage of a(n) ______

  A.warm front

  B.tropical cyclone

  C.anticyclone

  D.cold front

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