单项选择题

What is the attitude of the author towards the videoconferencing

A．Negative
B．Indifferent
C．Enthusiastic
D．Neutral
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单项选择题
The power of videoconferencing lies in that it can ______.
A．enhance the communication
B．increase productivity
C．understand the real meaning of the other party
D．all of the above
单项选择题
What is the proper meaning of the word cue in the second paragraph
A．Communication
B．Hint
C．Explanation
D．Production
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