单项选择题

People knew the nature of wolf very well.

A． Right
B． Wrong
C． Doesn't say
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单项选择题
We can find more and more grey wolves in Alaskea.
A． Right
B． Wrong
C． Doesn't say
单项选择题
There are fewer grey wolves in Europe than in U.S.
A． Right
B． Wrong
C． Doesn't say
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