The burning of the fuel adds more heat to the air charge， causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?（）
举一反三
- The burning of the fuel adds more heat to the air charge， causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?（） A: the burning B: the fuel C: the air charge D: the engine pisto
- What does the last sentence of this advertisement mean—“However the price looks more attractive as you do”?
- Many are using smartphones, not only to create their own dialects when texting, but also to do more serious work, such as practicing foreign languages and analyzing scripts from their theater classes.What does“dialect” mean in this sentence？
- As fuel is burned in the engine, about one-third of the heat energy in the fuel is converted into power.
- By burning its fuel, the engine makes the automobile travel on road