单项选择题

There is hardly an environment on earth ______ some species of animal or other has not adapted successfully.

A．to which
B．wherever
C．so that
D．as to
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单项选择题
I am sorry I______ your glasses off the desk when I was wiping it.
A．hit
B．knocked
C．struck
D．drew
单项选择题
Most doctors recognize that medicine is______.
A．an art as much it is a science
B．much an art as it is a science
C．as art an as much it is a science
D．as much an art as it is a science
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