下列哪一项不是慢性输卵管积水声像图表现（）

A.多在双侧附件区出现纺锤形肿块

B.肿块边缘较清晰，呈薄壁状

C.肿块间隔及囊壁较厚，多为实性

D.肿块内部呈明显无回声区

E.与子宫周围粘连严重时可与子宫直肠陷凹积液连成一片包围子宫

Betty writes _____ than _____ student in her classroom. [ ]

A. more carefully; any other

B. more carefully; any

C. more careful; any other

D. more careful; any