单项选择题

In the U. S. , it is common that each state ______ its power to an elected or appointed state board of education.

A．exercises
B．applies
C．adjusts
D．delegates
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单项选择题
The car of this model runs ______ fast than that of the new model, but it does not sell well.
A．not less
B．no less
C．no more
D．not so
单项选择题
John is a large-framed man of more than ______ height.
A．average
B．usual
C．normal
D．common
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