单项选择题

A UNEP official said, "The future is another country." Here he implies that" ______".

A．We can never do anything for the future
B．We can never know for certain about the future
C．We can see how lack of actions might effect on the inhabitants
D．We can see how our actions might influence the environment

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单项选择题

According to the passage, traffic accidents may be regarded as a social problem because ______.

A．autos have become most destructive to mankind
B．people usually pay little attention to law and morality
C．civilization brings much harm to people
D．the lack of virtue is becoming more severe

单项选择题

Why does the author mention the mental condition of the driver in Paragraph 3

A．To give an example of the various reasons for road accidents.
B．To show how important it is for drivers to be emotionally healthy.
C．To show some of the inaccurate estimations by researchers.
D．To illustrate the hidden tensions in the course of driving.