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单项选择题
A．Sea resources decline more rapidly than other resources.B．Fishing is important to industry.C．Fish are an important food source.D．Fish are more threatened than other animals.
A．Sea resources decline more rapidly than other resources.
B．Fishing is important to industry.
C．Fish are an important food source.
D．Fish are more threatened than other animals.
单项选择题
A．At a bakery.B．At a restaurant.C．In a library.D．At a travel agency.
A．At a bakery.
B．At a restaurant.
C．In a library.
D．At a travel agency.
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