• The salivary glands mainly served to digestion pectin, however midguts had the auxiliary function.

    对果胶消化主要胸唾,中辅助作用

    youdao

  • The salivary glands mainly served to digestion pectin, however midguts had the auxiliary function.

    对果胶消化主要胸唾,中辅助作用

    youdao

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