单项选择题

The emergence of the mass media and of specialized periodicals showed that ______.

A．standards of literacy had declined
B．readers' interests had diversified
C．printing techniques had improved
D．educationalists' attitudes had changed
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单项选择题
The information in paragraph 2 shows that ______.
A．aspirin can be dangerous
B．aspirin is always safe
C．aspirin has been around a long time
D．aspirin should be forbidden to apply to children
单项选择题
A good title for this article would be ______.
A．Aspirin: the Most Popular Medicine in the World
B．Why I Take Aspirin
C．The Side Effects of Aspirin
D．How to Take Aspirin
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