单项选择题

A．The drama wasn’’t interesting at all.
B．His watch is expensive.
C．He had another appointment last night.
D．The woman should have been there last night.
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问答题
Yesterday’’s skepticism was based on ignorance of the law of economic growth，and today’’s assurance ________________ (反映了人们对经济本质的误解).
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 practical side of their discoveries.
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