单项选择题

A．4.
B．5.
C．6.
D．7.
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单项选择题
A．In zoos.B．On plains.C．Near the sea.D．Far away from the forest.
A．In zoos.
B．On plains.
C．Near the sea.
D．Far away from the forest.
单项选择题
A．Experts in every field.B．American president.C．European countries.D．Members of Congress.
A．Experts in every field.
B．American president.
C．European countries.
D．Members of Congress.
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