By far the greatest item of maintenance of the reciprocating air compressors concerns （）.

A、the lubrication

B、the cooling

C、the moisture separation

D、the valves

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更多“By far the greatest item of maintenance of the reciprocating air compressors concerns （）.”相关的问题

第1题

[单选题] By far the greatest use is for diesel engine starting using air pressure of 25 bar or more provided by （）.

A、rotary compressors B、reciprocating compressors C、centrifugal compressors D、screw compressors

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第2题

[单选题] The joint face between the cylinder cover and the liner is arranged （）the combustion process as possible.

A、such far away from B、such near by C、as far away from D、as near by

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第3题

[单选题] This is（）the most difficult job I have ever tackled.

A、by rights B、by itself C、by oneself D、by far

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第4题

[单选题] When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined（）。

A、It is supplied by the CSU/DSU. B、It is supplied by the far end router. C、It is determined by the clock rate command. D、It is supplied by the Layer 1 bit stream timing.

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第5题

[] — How's the movie? Interesting? —（）

A、A.It was shown late until midnight B、B.It was starred by a few famous people C、C.Far from. I should have stayed home watching TV D、D.I was seated far away in the corner

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第6题

[单选题] Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.

A、cooling B、smothering C、oxygen dilution D、breaking the chain reaction

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第7题

[单选题] As far as the professor （）, college students should get into the habit of studying by themselves.

A、concern B、concerns C、concerned D、is concerned

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第8题

[单选题] The process of loop scavenge is that the exhaust will be via ports （） the air ports and controlled by the same piston.

A、behind B、far from C、adjacent to D、in front of