单项选择题

There ought to be less anxiety over the perceived risk of mountain climbing than______in the public mind today.

A．exists
B．exist
C．exiting
D．to exist
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单项选择题
Although he refused to act on my suggestion, he had to admit that______ what I said.
A．it was something in
B．there was something in
C．it was something as for
D．there was something upon
单项选择题
Statistics is a discipline ______all the other sciences.
A．affected
B．affecting
C．to be affected
D．being affected
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