单项选择题

A．They were imported from European countries.
B．They migrated from distant colonies.
C．They were domesticated from local wild breeds.
D．They were the result of a careful breeding program.
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单项选择题
A．The problem of lacking a mirror.B．The problem of lacking a decoration for the lift.C．A psychological problem.D．A material problem.
A．The problem of lacking a mirror.
B．The problem of lacking a decoration for the lift.
C．A psychological problem.
D．A material problem.
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