| 1. | Diagrams and graphs are indispensable visual aids in many aspects of economics .
图形和图解在经济学的许多方面是重要的形象工具。
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| 2. | Primary school teachers use a lot of visual aids
小学教师使用大量的视觉教具。
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| 3. | Face the audience when using your visual aids
当你使用视觉辅助手段是，要面对听众。
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| 4. | Make sure your visual aids are clear and easy to follow
保证你的辅助材料清晰和易于理解。
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| 5. | Our english teacher often uses visual aids in her classes
我们英语老师上课经常用直观教具。
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| 6. | Education with electrical audio - visual aids and rapid economic increasing
电化教育与经济快速增长
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| 7. | Code for construction and acceptance of civil airport visual aids
民用机场目视助航设施施工及验收规范
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| 8. | The regulation for surface colours of the visual aids to navigation in china
中国海区视觉航标表面色规定
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| 9. | The functions of teaching with electrical audia - visual aids in higher vocational education
电化教育在教学中的重要作用
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| 10. | When i was here a few months ago , the audio - visual aids were being installed
几个月前我在这里的时候，视听教具正在安装。
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