[问答题] 后天因素是指？

蜘蛛痣不常见下列哪个部位 ["面部 ","颈部 ","肩部 ","手臂 ","下肢"] 关于嗅诊的描述，下列哪项不正确 ["尿毒症病人呼吸中有氨味 ","肝性脑病病人有肝臭味 ","肺脓肿病人痰带恶臭味 ","有机磷中毒汗液有大蒜昧 ","幽门梗阻呕吐物有粪臭味"] 关于主诉写作，下列哪项不正确 ["指出疾病主要属何系统 ","指出疾病的急缓 ","指出疾病并发症的可能 ","指出疾病的预后 ","文字精练，术语准确"] 什么是“成熟势力说”？ 什么是“回忆说”？ 后天因素是指？