单项选择题

A．people
B．deaths
C．damages
D．ruins
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单项选择题
What is the purpose of the speaker researching the project
A．To prepare material for the class.
B．To do a research of this kind of bear.
C．To prevent them from becoming extinct.
D．To discover where the bears go.
单项选择题
What does the speaker emphasize as the reason for maintaining sea resources
A．It is important for food resources.
B．The great fisheries are to be exhausted.
C．The noted biologist insisted on it.
D．Fishes are fewer than Indian tigers.
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