单项选择题

Individuals exposed to loud noise for long intervals may suffer temporary or permanently loss of hearing.（）

A．constant
B．permanent
C．consistently
D．constantly

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单项选择题
Cactus plants have spines that prevent animals from nibbling them.（）

A．mining
B．reaching
C．climbing
D．gnawing
单项选择题
The outcry against the governments policies will subside only if a compromise is reached in the assembly.（）

A．die down
B．succeed
C．proceed
D．dislodg
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