关于三尖瓣下移畸形,下列何者有误()
A.右房明显扩大
B.右心容量超负荷
C.下移的瓣叶多为三尖瓣前叶
D.解剖右室变小
E.伴三尖瓣反流
参考答案:C
输卵管绝育术中如何防止肠粘连()
A.严格无菌操作
B.鼓励患者早日下床活动
C.关闭腹腔前向腹腔内注入低分子右旋糖酐
D.给予药物增加肠蠕动
E.术中减少组织损伤
You may find _____ astonishing that Charlie was taught to sing as soon as he could speak. [ ]
A. one
B. this
C. that
D. it