题目内容
胃肠钡餐造影时，下列关于小肠的描述哪项是错误的
2021-10-08
A.空肠黏膜显示为羽毛状
B.空肠腔内钡剂少，则表现为雪花状
C.回肠腔较空肠腔略宽
D.小肠蠕动是推进性蠕动
E.7〜9小时后小肠排空
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