单项选择题

This passage is mainly concerned with______.

A．the communication between a speaker and the audience
B．the use of body language in addressing an audience
C．various distractions of a speaker from the speech
D．the appropriate use of voice level in public speech

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单项选择题

According to the passage, in the course of speaking, a speaker should______.

A．use overhead projectors to help him
B．pay enough attention to the audience' s reaction
C．raise voice level to create special effect
D．ignore any distraction from the environment

单项选择题

It is usually easier to follow rules of social behavior ______depend on one' s own taste.

A．other than
B．than
C．than to
D．rather than