[名词解释] 习惯性脱位

表兄妹的亲缘系数为() ["A．1","B．1/2","C．1/4","D．1/8","E．1/16"] 祖父与孙子的亲缘系数为() ["A．1","B．1/2","C．1/4","D．1/8","E．1/16"] 父子的亲缘系数为() ["A．1","B．1/2","C．1/3","D．1/4","E．1/8"] 下列哪项属旁系血亲() ["A．父母与子女","B．同父异母兄妹","C．外祖父母与外孙子女","D．祖父母与孙子女","E．以上都不是"] 创伤性骨关节病 习惯性脱位