He gave away the company's commercial secret to another competitor,which means_________.    

[ ]

A. dismissing    

B. being dismissed    

C. to dismiss    

D. to be dismissed

正常肢体动脉的血流频谱形态是（）

A.宽频三峰递减型血流频谱

B.低阻力型血流频谱

C.高阻力型血流频谱

D.三相血流频谱

E.收缩期双峰、舒张期三峰血流频谱