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.
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单项选择题
There will not be another Hurricane Andrew in the foreseeable future.
A．Y
B．N
C．NG
单项选择题
A．He has to learn how to get a certain place in the shortest time.B．He has to learn how to please customers.C．He has to learn how to the most direct route to every single road and to every important building in London.D．He has to learn how to go around the city on small motorbikes.
A．He has to learn how to get a certain place in the shortest time.
B．He has to learn how to please customers.
C．He has to learn how to the most direct route to every single road and to every important building in London.
D．He has to learn how to go around the city on small motorbikes.
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