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DES RSA Digital Velop Digital Signature
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digital Video disc digital video disk digital view disk dec video disc
A. less the most more the least
CD-ROMs can be used for longer time CD-ROMs cannot be rewritten on CD-RWs hold more information CD-RWs are merely used for music recording
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buying; to be buying; being to buy; being to buy; to be
the variety of digital communications the development of new technologies the usefulness of digital codes the relationship between communication and technology
Digital cameras will be cheaper than traditional ones in the near future. Digital cameras and traditional cameras will co-exist for ever. The prices of digital cameras will go down very soon. Digital cameras will not take the place of traditional ones in the next few years.
laser beams digital codes musical notes special sounds
ti：（virtual）orti：（digital）andti：（service） ti：（virtual）andti：（digital）andti：（service） ti：（virtual）andti：（service）orti：（digital）
mathematical arithmetic numerical digital
to advocate the elimination of poverty. to justify the influence of the digital divide. to democratize computer access today. to expose the myths of the digital divide.
they are seldom used they play well and sound fine their users take good care of them they are developed with new technology
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