It can be inferred from the passage that in 1930 the greatest<br/>number of people in the Los Angeles area were employed in___ A: farming B: oil refining C: automobile manufacturing D: the motion picture industry

To meet the ever increasing demand() oil-refining equipment, the company will produce more of such equipment. A: of B: on C: with D: for

Lubricating oil system parameters monitored by pilots mainly include A: oil pressure, oil temperature, metal filing, oil capacity B: oil color, oil temperature, dust, oil capacity C: oil pressure, oil temperature, dust, oil capacity

Which oil is not suitable for use as storm oil?（） A: Fish oil B: Vegetable oil C: Mineral oil D: Animal oil

Which of the following is not helpful for dematerialization A: Reuse B: Remanufacturing C: Recycling D: Refining

The oil cooler of oil system on CFM56-3 engine are located in ( ). A: the oil scavenge circuit B: the oil supply circuit C: the oil tank D: the AGB

The oil cooler of oil system on CFM56-3 engine are located in ( ). A: the AGB B: the oil tank C: the oil supply circuit D: the oil scavenge circuit

What type of oil is not covered in the oil pollution law?（） A: mineral oil B: machinery oil being transferred for shipboard use C: crude oil unrefined D: normal bilge oil and water

On CFM56-3 engine, the oil temperature indicates the temperature of oil supply and oil tank. ( )

What is the heart of the lubrication system, which is located in the oil pan on the bottom of the engine? And it pulls oil up from the oil pan and makes the engine oil circulate through the engine. A: oil filter B: Screened intake C: oil pump D: oil pressure relief valve