单项选择题

In no way ______from practice.

A．theory can be separated
B．theory is separated
C．can theory be separated
D．has theory been separated
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单项选择题
He is ______a horse.
A．stronger as
B．as stronger than
C．the strong as
D．stronger than
单项选择题
Though I haven’t seen him for years, I can ______his voice on the telephone.
A．realize
B．discover
C．accept
D．recognize
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