单项选择题

Who was the inventor of chewing gum

A．Thomas Adams.
B．William Wrigley.
C．Both Adams and Wrigley.
D．Unknown.
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单项选择题
From the passage we can infer that Washington's education was ______.
A．of great variety
B．equal to those of the gentlemen of his time
C．good enough for his time
D．rather limited for a president
单项选择题
Washington felt uncomfortable in Congress debates because he ______.
A．lacked practice in public speaking
B．felt his education was inadequate
C．disliked arguing and debating with people
D．felt the others were impractical
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