单项选择题

A．All creatures live on one another.
B．Plants are more important than animals.
C．Animals are more important than plants.
D．Ecosystem has been destroyed by animals.
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单项选择题
A．Dr. Smith.B．Dr. Smith’s wife.C．A patient.D．A receptionist.
A．Dr. Smith.
B．Dr. Smith’s wife.
C．A patient.
D．A receptionist.
单项选择题
A．Excellent meat.B．High production of milk.C．Great endurance.D．Superior quality of wool.
A．Excellent meat.
B．High production of milk.
C．Great endurance.
D．Superior quality of wool.
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