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

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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

单项选择题

It is implied in the second paragraph that _________.

A．clear air is necessary for people's health
B．we don't have to worry about future developments
C．we should control overexploitation of the nature
D．people can produce more energy to meet industrial demands