单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．She can’t help the man out until later.
B．The task will take more time than the man thinks.
C．She complains that the man should have come earlier.
D．She can’t support the man’s argument during his debate.
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单项选择题
Which of the following statements does the author imply
A．In science, it is not difficult to distinguish fact from fiction.
B．Today few people have any notions of the meaning of science.
C．Practical-minded people can understand the meaning and objectives of pure science.
D．Scientists engaged in theoretical research should not be blamed for ignoring the practi- cal side of their discoveries.
单项选择题
To define science we may simply call it ______.
A．classified knowledge
B．the study of unrelated fields
C．the study of unrelated subjects
D．an attempt to explain natural phenomena
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