膀胱结石的CT表现为（）

A.膀胱内充盈缺损，边缘光整，密度高

B.膀胱缩小，轮廓毛糙即挛缩膀胱

C.膀胱呈"宝塔"状，体积增大，壁增厚

D.膀胱前上方见软组织肿块，在人体中轴线上

E.膀胱内充盈缺损，有增强

Some sea water came into the wheel house during the voyage due to（）the window thereof.

A.not close

B.not closing

C.we didn't close

D.not to be closed