单项选择题

Don't ______ to let me know if there is anything I can do for you.

A．reject
B．prevent
C．hesitate
D．refuse
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单项选择题
My property was ______ of in a sale.
A．disturbed
B．distributed
C．disposed
D．disputed
单项选择题
The light in this lab is too ______to be used for close work.
A．small
B．black
C．dark
D．dim
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