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【单选题】

A positive displacement pump is that where the volume of the pump chamber is alternately （） to draw the liquid in and then （） to force the liquid out.

A、increased；decreased

B、decreased；increased

C、decreased；decreased

D、increased；increased

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更多“A positive displacement pump is that where the volume of the pump chamber is alternately （） to draw the liquid in and then （） to force the liquid out.”相关的问题
第1题
[单选题] Which position includes the effects of wind and current（）.

A、Dead reckoning position  B、Leeway position  C、Estimated position  D、Set position  

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第2题
[单选题] In weather report, position good means that（）.

A、the position is suitable  B、the position is reliable  C、the position is changeable  D、the position is fixable  

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第3题
[] A position obtained by applying only your vessel’s coures and speed to a known position is a（）.

A、A.dead-reckoning position  B、B.fix B.estimated position  C、C.probable position  D、D.running fix  

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第4题
[单选题] A single line of position combined with a dead-reckoning position results in a(n)（）.

A、estimated position  B、assumed position  C、fix  D、running fix  

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第5题
[单选题] A single line of position combined with a dead-reckoning position results in a(n)（）.

A、running fix  B、fix  C、estimated position  D、assumed position  

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第6题
[单选题] What describes an accurate position that is NOT based on any prior position? （）

A、Dead-reckoning position  B、Estimated position  C、Fix  D、Running fix  

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第7题
[单选题] A position obtained by applying ONLY your vessel’s course and speed to a known position is a （）.

A、fix  B、dead-reckoning position  C、running fix  D、probable position  

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第8题
[单选题] A position obtained by applying only your vessel’s course and speed to a known position is a （）.

A、dead-reckoning position  B、fix  C、probable position  D、running fix  

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第9题
[单选题] Midships refers to rudder to be held（）.

A、in position to starboard  B、in position to port  C、in position to anywhere  D、in position fore and aft  

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第10题
[单选题] A position obtained by crossing lines of position taken at different times and advanced to a common time is a(n) （）.

A、dead-reckoning position  B、running fix  C、estimated position  D、fix  

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