题目内容
In ancient（古代） China, people divided lixia into three periods.
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Traditional Chinese medicine believes that people shall keep pace with changes in the weather
Thus, during this season, people should nurse their bodies and build up the hearts’ health.
免疫细胞之间相互识别及传递信息的物质基础是______________, 包括细胞表面的多种________.________和其他分子。
黏附分子以（）-（）结合的形式发挥作用，参与细胞的识别、活化和信号转导。
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