单项选择题

Under the present system, state enterprises must ______ all profits to the government.

A．turn down
B．turn up
C．turn out
D．turn in
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单项选择题
When I got out of the car and walked about among them, ______ one old man who shook his head disapprovingly, they all began to cheer.
A．see that
B．except that
C．provided that
D．except for
单项选择题
We are firmly ______ to the practice of power politics.
A．objected
B．opposed
C．opposing
D．conflicting
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