It is known from the first paragraph that
A. fashion operates in every society.
B. fashion is found only in a few fields of group life.
C. fashion originates in a class society.
D. people like to keep up with fashion in a primitive society.
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The function of mental CEO is to
A. associate the activities with the neural regions.
B. help people deal with many tasks at the same time.
C. establish priorities among complicated tasks.
D. supervise the use of specific mental resources.
Which of the following does the author imply？
A. Pure scientists should not be blamed for ignoring the practical side of their discoveries.
B. Today few people have any notions of the meaning of science.
C. In science, it is not difficult to distinguish fact from fiction.
D. Practical-minded people can understand the meaning and objectives of pure science.
The best title for this passage would be
A. The Decline of Environment Contamination.
B. Expiation—A New Method of Protecting Environment.
C. The Revitalization of Capitalism.
D. Inequality Produces Prosperity.
In order to reduce carbon emissions, airlines can
A. change air traffic routes to make it straight and shorter for a flight.
B. use lighter materials like composites in building a plane.
C. reduce the number of engines on a plane to cut weight.
D. produce environment-friendly fuels.
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