中国大学MOOC: Much of the new gas is coming from what were once called “unconventional” sources, such as the shale gas.
举一反三
- Much of the new gas is coming from what were once called “unconventional” sources, such as the shale gas. A: irregular B: unusual C: indifferent D: non-traditional
- 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
- __________ is natural gas that is found trapped within shale formations. It has become an increasingly important source of natural gas in the United States since the start of this century. A: Methane B: Shale gas C: Coal gas
- 中国大学MOOC: When you buy gas, you should tell the attendant whether you want unleaded, regular or premium gas.
- 中国大学MOOC: Laboratory-based efforts are attempting to make new forms of energy while mopping up carbon dioxide, an unwanted greenhouse gas, from the atmosphere.