单项选择题

A man who goes from door to door selling things has to be ________ if he wants to succeed.

A．abundant
B．aggressive
C．ambitious
D．arbitrary
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单项选择题
The important information is ________ from one computer to anther through a telephone line.
A．transferred
B．transformed
C．transmitted
D．transported
单项选择题
They made a ________ search for the lost ring, but didn't find it.
A．throughout
B．actual
C．thorough
D．suitable
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