单项选择题


Passage Three
What do we learn about the sea in the modem technological world

A．It is the largest supplier of valuable minerals.
B．It will disappear in about thirty years.
C．It is beginning to grow smaller and smaller.
D．It offers many resources to help mankind survive.
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Where does the conversation most probably take place
A．At a bookstore.
B．At a library.
C．On the telephone.
D．At the student center.
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What is the purpose of Tommy Carter’s research
A．To find the similarity of soybeans in the world.
B．To protect soybeans against dry condition.
C．To collect materials for their papers.
D．To study the impact of global warming.
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