单项选择题

Why should the program be easy to understand

A．It is meant for nonscientists.
B．It is simple enough for children.
C．A discussion will be held after the show.
D．There will be a series following the first now.
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单项选择题
A．abandonedB．changedC．standardizedD．reformed
A．abandoned
B．changed
C．standardized
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What is known about Prof. Grant
A．She has been to Mexico.
B．She assigns long research papers.
C．She teaches cultural anthropology.
D．She collects ancient relies.
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