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medical
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单项选择题
A．A scarcity of jobs in their field.B．Inadequate training in methods of biological research.C．Difficulties in classifying all of the varieties of owls.D．A lack of funding for their work with endangered species.
A．A scarcity of jobs in their field.
B．Inadequate training in methods of biological research.
C．Difficulties in classifying all of the varieties of owls.
D．A lack of funding for their work with endangered species.
单项选择题
A．In a railway station.B．In a bus terminal.C．In a hotel room.D．In a restaurant.
A．In a railway station.
B．In a bus terminal.
C．In a hotel room.
D．In a restaurant.
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