13. For a car engine to work long and well, the owner should ______.
A: replace the engine oil as recommended
B: reduce the use of the car in summer
C: clean the engine parts regularly
D: change the brakes frequently
A: replace the engine oil as recommended
B: reduce the use of the car in summer
C: clean the engine parts regularly
D: change the brakes frequently
举一反三
- What is the core of a car’s engine?
- Before starting a diesel engine that has an engine driven lube oil pump， the engineer should （）.
- The __________ must be circulated between moving engine parts to prevet metal-to-metal contact. A: coolant B: fuel C: engine oil D: water
- Please don’t () my car engine
- Though the car was damaged, the engine was still__________good condition. A: in B: of C: at D: on