After extinguishing a paint locker fire using the fixed CO2 system，the next action is to have the space（）.

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  A . a blanket of bubbles formed on the surface of the fire B . smothering C . cooling D . isolating the heat from the fuel

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• Removing which will extinguish a fire?（）.

  A . Nitrogen B . Carbon dioxide C . Sodium D . Oxyge

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• After extinguishing a fire with CO2，it is advisable to（）.

  A . use all CO available to cool the surrounding area B . stand by with water or other agents C . thoroughly ventilate the space of CO D . jettison all burning material

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• 产后宫缩痛(after–pains)

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• Halon extinguishes a fire by（）.

  A . breaking the chain reaction B . smothering the fire C . cooling the fire D . coating the fuel with a nonflammable surface

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  A . shutting off the air supply B . cooling the fuel to below ignition temperature C . dispersing the fuel D . removing the source of ignitio

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• After using a C02 portable extinguisher,it should be（）.

  A . put back in service if some CO remains B . hydrostatically tested C . retagged D . recharged

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• After a fire has been extinguished in a closed space, personnel may safely enter the space when （）.

  A . smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance B . a lifeline and explosion proof flash light are used C . all smoke and toxic fumes are removed and an adequate oxygen supply is present D . overhaul has been completed to remove any possible source of re-ignitio

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• 0n a vessel ,a C02 extinguisher is checked by（）.

  A . reading the gage pressure B . weighing the extinguisher C . discharging a small amount of CO D . seeing if the seal has been broke

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• A fire can be extinguished by removing （）.

  A . the heat B . the fuel C . the oxygen D . any of the above

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  A . cooling B . smothering C . chemical action D . All of the above

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  A . cooling B . chemical action C . smothering D . inerting the air

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  A . put back in service if some C0 remains B . hydrostatically tested C . retagged D . recharged

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  A . cooling B . smothering C . chemical action D . All of the above

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• After using a CO2 extinguisher on a ship，it should be（）.

  A . put back in service if some CO remains B . hydrostatically tested C . retagged D . recharged

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• 间接性跛行是指行走随距离增加而出现腰背痛或下肢放射痛,休息后缓解,再次行走时再出现(Indirect claudication refers to low back pain or radiation pain in the lower limbs when walking with increasing distance, which is relieved after rest and reappears when walking again)

  错误 正确

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• Even after he became famous, however, Andersen still felt like an outsider. His personal relationships caused him much pain.

  A、即使是他成名之后，安徒生仍然觉得自己是个局外人。他的人际关系带给他许多痛苦。 B、在他成名之后，然而，安徒生仍觉得自己像个局外人。他的人际关系带给他许多痛苦。

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• Immediately after cementing a full cast gold crown，the patient complains of a shooting pain every time the opposing teeth touch because of()

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