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.
内容
- 0
Which of the following engines has no significant effects on energy saving and emission reduction?_____ A: Electronic-controlled injection diesel engine B: Gas turbine C: Gas engine D: Dual fuel engine
- 1
Mexico City changed from electric buses to regular buses to cope with the noise and air pollution.
- 2
Apparent metabolizable energy（AME）is the remaining energy after subtracting（ ）from the gross energy. A: Fecal energy B: Urine energy C: Metabolizable fecal energy D: Gas energy E: Endogenous urine energy
- 3
______ Kabe’s fans watched his final match and ______ of them were men. A: Million of; three fourths B: Three millions; third C: Millions of; three fourths D: Three million; third fours
- 4
Electric heaters have the electric energy _____________ (transform) into heart.