单项选择题

A．Gathering non-relevant materials.
B．Stealing another person’s ideas.
C．Sharing notes with someone else.
D．Handing in assignments late.
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单项选择题
A．Content of speech is more important than tone of voice. B．Voice quality has a strong effect on listeners. C．Effective speakers must use visual aids. D．A microphone is essential in large rooms.
A．Content of speech is more important than tone of voice.
B．Voice quality has a strong effect on listeners.
C．Effective speakers must use visual aids.
D．A microphone is essential in large rooms.
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