单项选择题

The world's population will be getting less.

A． Right
B． Wrong
C． Doesn't say
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单项选择题
In the past twenty years the replacement rate has been falling in every country.
A． Right
B． Wrong
C． Doesn't say
单项选择题
More people are living in the U.S.A nowadays.
A． Right
B． Wrong
C． Doesn't say
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