单项选择题

In mathematics the term "solid" describes a geometric figure with three dimensions.

A．angle
B．shape
C．triangle
D．equation
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单项选择题
______ this coming Thursday, it will be too late to enroll of the course.
A．As of
B．As for
C．As to
D．As on
单项选择题
Although states were allowed to coin money right after the American Revolution, they are not allowed to do so today.
A．fairly
B．temporarily
C．immediately
D．haphazardly
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