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._________________.
举一反三
- n. mineral oil that is found under the ground or the sea and is used to produce petrol/gas, paraffin, diesel oil, etc.. A: opponent B: nitrogen C: petroleum D: masterpiece
- Data obtained from the investigations __________ that there is a large amount of oil below the seabed in this area.
- According to Para 3,______per person of the earth’s surface can be used to produce food.
- of all organic chemical is obtained from crude oil and natural gas. A: 80% B: 99% C: 70% D: 79%
- the quality or state of the chemical substance that has a pH values below 7: