Video compact discs (VCDs) of the Encyclopedia of Science have been published by the Qilu Audio and Video Publishing House.The 24-hour-long VCDs, made by the US-based Well Go Co., cover basic...
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Video compact discs (VCDs) of the Encyclopedia of Science have been published by the Qilu Audio and Video Publishing House.The 24-hour-long VCDs, made by the US-based Well Go Co., cover basic...