单项选择题

A．Ten decades.
B．A quarter of century.
C．One decade.
D．One-tenth of year.
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单项选择题
A．To attract more sea animals to the testing site.B．To drive dangerous sea animals away from the testing site.C．To help trace the sea animals being tested.D．To determine how sea animals communicate with each other.
A．To attract more sea animals to the testing site.
B．To drive dangerous sea animals away from the testing site.
C．To help trace the sea animals being tested.
D．To determine how sea animals communicate with each other.
单项选择题
There will not be another Hurricane Andrew in the foreseeable future.
A．Y
B．N
C．NG
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