Master-apprentice system is a key format of Chinese medicine education and an important factor in forming different medical schools.

中医师承是中医教育的重要形式；中医师承是形成医学流派的重要因素；

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Most agree that content is key in winning the format war, and both sides believe they will be able to get out more, faster.

ENGADGET: High-def DVD sales slower than expected; HD DVD sells more units but Blu-ray makes more money

But Sony has added one key feature: the new model now supports the AAC file format, which Sony is in the process of adding to all new players.

ENGADGET: Sony NW-E005 flash Walkman with AAC support