单项选择题

New data has ______ that the damage to the ozone layer is not confined to the southern hemisphere.

A．ratified
B．confirmed
C．assured
D．approved
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单项选择题
They are both very determined people, so there's rather a ______ of personalities.
A．debate
B．disagreement
C．contest
D．clash
单项选择题
The two newspapers gave different ______ of what happened.
A．versions
B．editions
C．productions
D．texts
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