单项选择题

Which of the following is the topic of Paragraph 3

A．Some historical documents may not be real.
B．Some authors may not be honest.
C．Historians should be careful about their sources.
D．Historians may be influenced by their own backgrounds.

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单项选择题

A．forB．inC．asD．to

A．for
B．in
C．as
D．to

单项选择题

In Paragraph 1 the author means to illustrate that ______.

A．different men think and act differently
B．the study of history is not merely a matter of remembering dates
C．a statesman can remember the names of voters in his district
D．a waiter can remember more names than the great historians