题目内容
State your purpose and audience clearly in the introduction of your presentation.
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It's unnecessary to use signal words to mark movement from one topic to the next or indicate a shift in perspective.
We should use animation and decorations as much as possiblein Powerpoint.
A handout is a simple way to help people remember what you have said, which may contain an outline of your remarks.
Impromptu is a planned spontaneous presentation.
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