单项选择题

______ compels it, a body at rest will never move.

A．Until a force
B．Not until a force
C．A force
D．Force
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单项选择题
He as well as I ______ you on that point.
A．agree with
B．agree to
C．agrees with
D．am to agree
单项选择题
They decided to chase the cow away ______ it did more damage.
A．unless
B．until
C．before
D．although
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