单项选择题

Salaries for ______ positions seem to be higher than for permanent ones.

A．legal
B．optional
C．voluntary
D．temporary
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单项选择题
Most people agree that the present role of women has already affected US society. ______, it has affected the traditional role of men.
A．Above all
B．In all
C．At most
D．At last
单项选择题
As an actor he could communicate a whole ______ of emotions.
A．frame
B．range
C．number
D．scale
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