单项选择题

Which of the following is the best solution to the problems mentioned in the passage

A．The designing of highly efficient car engines.
B．A reduction of vehicle use in cities.
C．The development of electric cars.
D．The use of less polluting fuels.
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单项选择题
Which of the following statements is TRUE according to the passage
A．The decline of public transportation accounts for increased car use in western Europe.
B．Cars are popular in western Europe even though fuel prices are fairly high.
C．The reduction of vehicle use is the only sustainable option in densely populated western Europe.
D．Western European oil companies cannot sustain the cost of developing new-type fuels.
单项选择题
Which statement best describes the main idea of the passage
A．It discusses the advantages and disadvantages of freezers.
B．It tells the most economical ways to use a freezer.
C．It explains how to defrost a manual-defrost freezer.
D．h offers advice about choosing and caring for a freezer.
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