单项选择题

The precise instrument can record the slightest ______ in pressure.

A. variety
B. variance
C. varsity
D. variation
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单项选择题
______ the fact that we have made mistakes hi our work.
A. It is not to deny
B. There's no denying
C. Not to deny
D. There is not to deny
单项选择题
The young writer is not ______ presently, but he will be well known to the world someday.
A. significant
B. dominant
C. magnificent
D. prominent
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