A: oil used for driving
B: waste oil discarded
C: gas which is produced by cars
D: devices that burn oil
举一反三
- Sulphur dioxide (二氧化硫 ) from the use of coal and oil causes much acid rain, nitrous oxide (氧化氮) which erode our ozone layer.
- Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（） A: Water discharging from the water outlet of the lube oil purifier B: Fuel oil discharging from the water outlet of the lube oil purifier C: Lube oil discharging from the water outlet of the lube oil purifier D: A change in the lube oil viscosity
- The role and position of unconventional oil and gas resources in global oil and gas production are becoming more and more important. Which of the following are unconventional oil and gas resources? A: Tight rock oil and gas B: Mud shale oil and gas C: Coalbed methane D: Oil shale E: Oil sands F: Natural gas hydrate
- Other emissions: Sulphur dioxide causes acid rain, nitrous oxide erodes the ozone layer. Both of these, mostly from coal and oil, we control 5) ____________.
- The sequence from top to bottom of oil reservoir with a Gas cap is
内容
- 0
In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
- 1
Which substance is NOT considered to be Oil under the pollution prevention regulations? （） A: Petroleum and fuel oil B: Sludge C: Oil mixed with dredge spoil D: Oil refuse and oil mixed with waste
- 2
The oil shortage ________ the prices of chemical fertilizers on the world market. A: A drove oil B: B drove up C: C drove in D: D drove off
- 3
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
- 4
名词：原油，a mineral oil obtained from below the surface of the Earth, and used to produce pertrol , paraffin , and various chemical substance._________________.