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5-羥色胺酸5-hydroxindoleacetic acid (5-HIAA)
5-氫氧靛基醋酸(5TH的代謝物) 5-hydroxyindoleacetic acid (5-HIAA)
匿名者戒酒協會AA (Alcoholics Anonymous)
美國退休人員協會 AARP (American Association of Retired Persons)
異常行為、違常行為、偏態行為 abnormal behavior
異常、違常、偏態 abnormality
適應行為量表ABS (Adaptive Behavior Scale)
失神性發作absence seizure
絕對閾absolute threshold
受虐兒abused child
接納acceptance
調適、調節作用accommodation
懶惰的罪acedia(sin of acedia)
乙醯膽鹼acetylcholine (ACh)
成就需求achievement need
追求成就achievement striving
軟骨發育不全achondroplasia
聽覺編碼acoustic code
愛滋病;後天免疫不全症候群 acquires immune deficiency syndrome; AIDS
習(獲)得acquisition
懼高症acrophobia
活動記錄器actigraph
行動外化acting out