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A．Some historical documents may not be real.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

The true historian should base his statements on ______.

A．findings of other historians
B．documents created at the present time
C．his own inferences
D．sound historical materials

单项选择题

The word unsurpassed in the third paragraph is closest in meaning to ______.

A．untold
B．unequalled
C．unnoticed
D．unexpected