At the end of the passage the author proposes more work on______.
A. the brain structure as a whole
B. the functioning of part of the brain
C. the distinction between sexes
D. the effects of the corpus callosum
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We can infer from the passage that______.
A. problems at the international level continue to be difficult to resolve
B. all countries are going to impose taxes on fishers and tourists
C. the UN General Assembly has made strong policies with regard to oceanic protection
D. the problems facing the oceans have already aroused sufficient attention
Which of the following best explains the word "sprawl" in paragraph 4？
A certain kind of large-canopied tree.
B. Stretching out one's body and limbs.
C. Urban high-rise building.
D. Growth or outward extension of a city.
A．A foreign language.B．Good diction.C．Switchboard operation skills.D．None of the above
A foreign language.
B. Good diction.
C. Switchboard operation skills.
D. None of the above.
What is the main purpose of the passage？
A. To outline the research findings on the brain structure.
B. To explain the link between brain structure and gender differences.
C. To discuss the various factors that cause brain differences.
D. To suggest new areas in brain research.
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