Using some ________ fuels ,such as natural gas, in vehicles can generally00a000a0reduce harmful pollutants and exhaust emissions.
举一反三
- 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.
- Natural gas vehicles have lower emissions compared with conventional cars running on diesel or gasoline．
- New York and other U.S. cities have begun using vehicles powered by natural gas
- What are measures that can be taken to reduce outdoor air pollution? （ ） A: Encouraging less frequent emissions inspections on vehicles B: Using less-leaded gasoline C: Reducing the burning of garbage D: Using leaded gasoline
- 中国大学MOOC: IIHere’s a paragraph that has both factsand opinions.Read and decide whether they are factsor opinions. (10 points, five for each)New York and other U.S. cities have begun using vehicles powered by natural gas[1]. This is a good idea[2], because vehicles that use natural gas do not pollute the air[3]. Pollution is the biggest problem facing cities right now[4]. Furthermore, natural gas is more cost-effective than regular gas[5]. All cities should use only vehicles powered by natural gas[6].1.Facts are _________