单项选择题

After earthquake many local firms ______ to disaster relief efforts.

A．administered
B．distributed
C．attributed
D．contributed
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单项选择题
We must respect other's ______, but not make an invasion of it.
A．privacy
B．humanity
C．dignity
D．secrecy
单项选择题
Many rare species of plants and animals are threatened with ______ with the worsening of environment and mass hunting.
A．migration
B．extinction
C．distinction
D．distraction
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