题干
Neil seemed very calm, yet Celia was still aware of his panic _______ the surface.
A：beneath
B：over
C：beyond
D：from
答案(点此获取答案解析）
A
Neil seemed very calm, yet Celia was still aware of his panic _______ the surface.
A：beneath
B：over
C：beyond
D：from
三点不共线，设
,则
的面积等
于（ ）K^S*5U.C#