题目内容
关于正常妊娠澳的描述,不正确的是( )
2021-10-14
A.位于宫腔中上段的宫腔中央
B.轮廓光滑完整
C.回声及厚度均匀、饱满
D.可见双环征
E.经腹超声一般在停经后5〜6周可发现 妊娠囊
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