Plan on 20 minutes maximum with no more than 10 slides, and use pictures and diagrams, not bullet points, Berry says.
计划最多在20分钟不超过10个幻灯片,和使用图片和图表,没有要点,贝里说。
Plan on 20 minutes maximum with no more than 10 slides, and use pictures and diagrams, not bullet points, Berry says.
计划最多在20分钟不超过10个幻灯片,和使用图片和图表,没有要点,贝里说。
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