Chaning from regular bulbs to () ones will reduce greenhouse gas by three-fourths.
A: electric
B: energy-saving
A: electric
B: energy-saving
举一反三
- 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.
- What does the example of three cars explain for? (). A: Unmanned vehicles are much better than manual in term of safe<br/>distance. B: Unmanned<br/>vehicles are much better than manual in term of reaction time. C: Unmanned vehicles can greatly reduce greenhouse gas emissions. D: Unmanned vehicles can greatly increase greenhouse gas emissions.
- ____ of the land ____ covered with water. A: Three fourth; is B: Three fourth; are C: Three fourths; is D: Three fourths; are
- ________ of the earth ________ covered by sea. A: Three fourth; is B: Three fourths; is C: Three fourth; are D: Three fourths; are
- The adoption of this measure will greatly reduce the ________ of greenhouse gas emissions (排放物), which may help slow global warming.