[名词解释] 内氏小体

膝关节脂肪垫主要功能() ["A．减少膝关节摩擦和减轻膝关节负重","B．吸收震荡和加强膝关节稳定","C．加强膝关节稳定和减少摩擦","D．减轻膝关节负重和加强膝关节稳定","E．吸收震荡和减少摩擦"] 有哪些因素对人被狗咬伤后是否发病有影响? 返流性食管炎常继发() ["A．食管癌","B．食管裂孔疝","C．食管静脉曲张","D．食管溃疡","E．食管憩室"] 街毒株 固定毒株 内氏小体