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單項選擇題

No specific period is given for the renewal of the lubricating oil filter element as this should be done（） a figure of 0√7 bars is shown on the gauge.

A.whatever
B.whenever
C.wherever
D.whoever

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單項選擇題

Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for （） and supercharging.

A.scavenging
B.starting
C.cooling
D.blowing

單項選擇題

Modem engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.

A.make use of
B.have made the use of
C.by means of
D.make advantage of