单项选择题

She could fix machine without referring to the instructions.

A．observing
B．learning
C．consulting
D．understanding
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单项选择题
Continuous short buzzes on the telephone indicate that the line is busy after you dial the telephone number.
A．open
B．out of order
C．disengaged
D．in use
单项选择题
She shows little regard for the feelings of others and does exactly what she wants to.
A．feeling
B．love
C．consideration
D．sense
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