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为研究两侧腮腺分泌的自律调节,以22名大学生为研究对象,检查用单侧咀嚼糖块时,咀嚼侧和非咀嚼侧腰腺分泌的差别;检查左利手者(左撇子)和右利手
In order to study the regulation of parotid gland secretion on both sides, 22 college students were selected to examine the difference in secretion of the lumbar gland between chewed and non-chewed unilateral chewing pieces; hand