单项选择题

In the second paragraph, the author uses the word "self-sufficiency" to mean that _________.

A．economic development damages our future
B．we should return to the productive mode in the past decades
C．people uses their own things rather than borrowing from others
D．we must reduce the environmental cost of economic development
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单项选择题
From the information given in the passage, the author's main concern is that _________.
A．the environment well-being and our health are related
B．the environment and the results of our exercising is relevant
C．the ever changing living standards demand more from the environment
D．the balance of environment and economic development is vital for the society
单项选择题
What will probably follow this passage
A．A series of writings by others on the same topic.
B．The author's expanded view about the role of universities.
C．A list of the possible roles in society that universities can play.
D．A case study of examples of universities that are doing well.
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