A discussion of air pollution．,Predictions of fuel surp-找考题网

单项选择题

A．A discussion of air pollution.
B．Predictions of fuel surpluses.
C．Slides of recently discovered fossils.
D．A description of urban transportation patterns.

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单项选择题

A．Eleven dollars for the event.B．Five dollars for the event.C．One dollar per mile.D．Twenty-five cents or less per mile.

A．Eleven dollars for the event.
B．Five dollars for the event.
C．One dollar per mile.
D．Twenty-five cents or less per mile.

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A．1.3 seconds.B．Eight minutes.C．A life’s time.D．About four years.

A．1.3 seconds.
B．Eight minutes.
C．A life’s time.
D．About four years.

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