单项选择题

Which of tile following is LEAST likely to be found as a fossil, assuming that all are buried rapidly

A．a dinosaur.
B．a woolly mammoth.
C．a human ancestor.
D．a worm.
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单项选择题
It can be inferred that a condition that favors fossilization when volcanic ash falls to Earth is______.
A．quick burial.
B．cold storage.
C．quick temperature change.
D．lack of water
单项选择题
The passage primarily concerns which of the following
A．Types of fossils found in different climates.
B．Some physical character of fossils.
C．Conditions favorable to the preservation of fossils.
D．How fossils are preserved.
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