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
He has to _______ his mean salary by living economically.
A．onset
B．outset
C．offset
D．outlet
单项选择题
I would ________ you not to involve in this matter.
A．council
B．counsel
C．declare
D．console
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