单项选择题

The degree of economic growth is an ______ of the level of living.

A．index
B．advantage
C．access
D．aspect
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单项选择题
New data has ______ that the damage to the ozone layer is not confined to the southern hemi- sphere.
A．ratified
B．confirmed
C．assured
D．approved
单项选择题
She ______ the list of names to see if hers was on it.
A．glanced
B．gazed
C．peered
D．scanned
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