During the 1950’s, __________ was used for the first time to drive steam engines.
举一反三
- According to paragraph 2, Watt's steam engine differed from earlier steam engines in each of the following ways EXCEPT: A: It used steam to move a piston in a cylinder. B: It worked with greater speed. C: It was more efficient in its use of fuel D: It could be used in many different ways.
- According to the fuel en engine burns, there are gasoline engines and _________ engines.
- What are there types of the engine? A: electric motors B: steam engines C: internal combustion engines
- What is true about John and Paul? A: It's the first time they came to London and to Lowis. B: It's the first time they came to London. C: It's the first time they came to Lowis.
- The setting of the story is in India and the time of the story is during the First World War.