单项选择题

A．A fuel that burns cleanly.
B．An oil additive that helps cool engines.
C．A material from which filters are made.
D．An insulating material sprayed on engine parts.
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What’s the advice given to those career beginners
单项选择题
A．Her car is being repaired.B．She wants to help reduce pollution.C．Parking is difficult in the city.D．The cost of fuel has increased.
A．Her car is being repaired.
B．She wants to help reduce pollution.
C．Parking is difficult in the city.
D．The cost of fuel has increased.
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