单项选择题

The reconstruction of a fossilized animal's external appearance is considered necessary in order to______.

A．satisfy popular curiosity
B．answer scientific questions
C．establish its activities
D．determine its eating habits
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单项选择题
The muscles of a fossilized animal can sometimes be reconstructed because______.
A．they were preserved with the rest of the animal
B．they were lodged inside the animal's skull
C．they were hardened parts of the animal's body
D．they were attached to the animal's skeleton
单项选择题
The third paragraph of the passage deals with the difficulties of restoring the following fossilized animals EXCEPT______.
A．those which had complex internal structures
B．those which had no external hard parts
C．those which had fur-covered bodies
D．those which had no living relatives
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