单项选择题

Scientific research results can now be quickly ______ to factory production.

A．used
B．applied
C．tried
D．practiced

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单项选择题

There has been a ______ lack of communication between the union and the management.

A．regretful
B．regrettable
C．regretting
D．regretted

单项选择题

—Does Alan like hamburgers —Yes. So much ______ that he eats them almost every day.

A．for
B．as
C．to
D．so

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