单项选择题

Care should be taken to decrease the length of time that one is ______loud continuous noise.

A．subjected to
B．filled with
C．associated with
D．attached to
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单项选择题
Communication is the process of ______a message from a source to an audience via a channel.
A．transmitting
B．submitting
C．transforming
D．switching
单项选择题
I deem the girl was in a bad health because the handshake with her was so______.
A．limp
B．lame
C．soft
D．strong
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