what is demonstration? what is it about
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Provides Proof. The product, sample, video, brochures, pictures and other tools used in a demo are often called proof devices because they offer tangible evidence that supports what you say.
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an act of showing that something exists or is true by giving proof or evidence.
A practical exbihition and explanationof how something works or is performed.
A practical exbihition and explanationof how something works or is performed.
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