单项选择题

We can infer from the passage that _________.

A．we have to pay more, to cut down on pollution
B．we have to pay more to better our environment
C．we have to conserve natural resources in our economic development
D．recovery of nature after pollution costs more money than prevention of pollution

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单项选择题

Which of the following might be the best title for the passage

A．Self-efficiency
B．The Importance of Environment Protection
C．Environment Protection and Economic Development
D．Industrialized Countries Should Help Developing Countries Protect Environment

单项选择题

According to the author, _________.

A．people benefit from universities but do not value them
B．universities have lost their sense of purpose
C．people value universities but are hesitant to support them
D．universities are no longer effective in producing good graduates