A: forbid
B: appropriate
C: elated
D: supply
举一反三
- Many people prefer large cars, ____ large cars are safer than small ones.
- A small car is more ___________ than a large one because the former uses less gas.
- A small car is more ________ than a large car, because it uses less petrol. A: economical B: economic C: thrifty D: advantageous
- The waste gas of cars has only badly polluted the air.
- A Popularity and use of natural gas B Natural gas reserves and supply C Natural gas prices D Clean fuel of choice E Disadvantages of natural gas F Natural gas consumption Paragraph 2______
内容
- 0
Natural gas vehicles have lower emissions compared with conventional cars running on diesel or gasoline．
- 1
The cost of natural gas is significantly less than that of diesel and gasoline．
- 2
“A nation on wheels”means that ________. A: the country is producing the best cars in the world B: everyone in this country owns a car C: cars play a very important role in people' lives D: there are more cars than trains in this country
- 3
petroleum mud logging technology is characterized by multi-parameters, large amount of information, fast and real-time on site, and its main functions are ( ). A: discover oil and gas reservoirs in time B: evaluate oil and gas reservoirs while drilling C: provide resource evaluation parameters D: ensure safe drilling
- 4
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.