单项选择题

They are bending with great ______ over the computer.

A. attempt
B. concentration
C. tolerance
D. devotion
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单项选择题
The strident was disappointed ______ the prize awarded by the school.
A. in
B. with
C. at
D. to
单项选择题
A sneeze cannot be performed voluntarily, ______ be easily suppressed.
A. nor it can
B. it can not
C. nor can it
D. cannot it
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