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Only when visual aids are used to dominate, can you succeed in your speech.
Only when visual aids are used to dominate, can you succeed in your speech.
A.正确
B.错误
正确答案：错误
标签：
口语与演讲
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The major types of visual aids are： Objects and models, photos and drawings, graphs, charts, videos, PowerPoint and the speaker.
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We should explain visual aids rather than read them.