单项选择题

A．They are often handled improperly by readers.
B．The paper is destroyed by chemicals.
C．The ink used in printing damages the paper.
D．The glue used in the binding loses its strength.
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单项选择题
A．In caves.B．Inside archaean.C．On the ocean floor.D．Far below the Earth’s crust.
A．In caves.
B．Inside archaean.
C．On the ocean floor.
D．Far below the Earth’s crust.
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miserable
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