呈结节状扁圆柱形；表面黄棕色，外皮脱落处呈白色，密具层状突起的粗环纹，一面结节明显，结节上具椭圆形凹陷茎痕，另一面有疏生的须根；顶端具鱗叶和茎的残基；质坚实，断面平坦，白色至浅棕色，粉性的药材是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id < 2393386 and id<>'2393386' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29382' and id > 2393386 and id<>'2393386' order by id asc limit 5