“How could you lose so much money?” John asked his wife, eyeing her angrily from ________ the kitchen table.  

A．at

B．across

C．through

D．on

动脉瘤样骨囊肿的特征（）。

A.边缘无钙化或骨化影

B.有液-液平面、无增强

C.边缘硬化，可有液-液平面

D.无病理性骨折

E.边缘无硬化，无液-液平面