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【单选题】

How does an inert gas system on a tanker function to prevent explosions in cargo tanks? ()

A、De-energizes the "charged mist" effect

B、Maintains a positive pressure on the vent header to cool the flammable vapors

C、Inert gas filters out the flammable vapors from the cargo tank spaces

D、Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit

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第3题

A、How ofen do the course?  B、How about the flavour of this course?  C、How long does it preparefor dinner?  D、How long does it take to cook this course?  

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第4题

A、an open message with the E bit set  B、an update message with the E bit set  C、an open message with an end-of-RIB marker  D、an update message with an end-of-RIB marker  

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第5题

A、flammable vapors from entering machinery space  B、flue gas escaping to atmosphere  C、inert gas escaping to atmosphere  D、air entering inert gas system  

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第6题

A、A. It polices each individual session to an explicit rate.  B、B. It does not police, but never allows link oversubscription.  C、C. It polices the aggregate rate of all sessions to an explicit rate.  D、D. It does not police, but limits the amount of reservable bandwidth.  

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第7题

A、How many times  B、How much water  C、How long  D、How length  

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