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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单项选择题
A．His travels.B．His short stories.C．His wealth.D．His family.
A．His travels.
B．His short stories.
C．His wealth.
D．His family.
单项选择题
A．It was an independent country.B．It belonged to India.C．It was one of the British colonies.D．It was a small island in the Pacific Ocean.
A．It was an independent country.
B．It belonged to India.
C．It was one of the British colonies.
D．It was a small island in the Pacific Ocean.
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