A frontal thunderstorm is caused by ______．

试卷相关题目

• 1Sometimes a tropical storm moves so slowly that a vessel，if astern of it，can ______ it．

  A.go ahead

  B.approach

  C.proceed near

  D.run into

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• 2The engine ______ smoke and steam．

  A.gives up

  B.gives away

  C.gives in

  D.gives off

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• 3Owing to the big draught of the ship，she has to get alongside by the time of ______．

  A.spring tide

  B.flood tide

  C.ebb tide

  D.slack water

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• 4Pitching is angular motion of the vessel about what axis、

  A.Longitudinal

  B.Transverse

  C.Vertical

  D.Centerline

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• 5The ship is not very stable，please ______ when making a turn．

  A.stop down

  B.speed down

  C.slow down

  D.down slow

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• 6Good weather is usually associated with a region of ______．

  A.low barometric pressure

  B.high barometric pressure

  C.falling barometric pressure

  D.pumping barometric pressure

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• 7An air mass is termed warm if ______．

  A.it is above 70° F

  B.the ground over which it moves is cooler than the air

  C.it originated in a high pressure area

  D.it originated in a low pressure area

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• 8BASHI：E TO SE 9-10．500M IN HVY SQUALLY SHWRS AND TS．SEA 8-9M．SWELL SE 6-7．From the above forecast，the wind in Beaufort Scale will be ______．

  A.STRONG GALE TO STORM

  B.GALE TO STRONG GALE

  C.NEAR GALE TO GALE

  D.STRONG BREEZE TO NEAR GALE

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• 9MAINLY GOOD BECOMING MODERATE．This forecast probably refers to ______ in acertain area．

  A.visibility

  B.winds

  C.sea

  D.fog

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• 10A shipper of cargo aboard your vessel offers a letter of indemnity for the cargo．This is done in order to obtain a(n) ______．

  A.Clean Bill of Lading

  B.Order Bill of Lading

  C.Straight Bill of Lading

  D.Through Bill of Lading

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