—I say, Harry. What did you say to the laid-off worker just now?

—Nothing. I           to myself.

A．had only talked

B．am only talking

C．have just talked

D．was just talking

下列符合中等量胸腔积液X线表现的是（）

A.上缘呈外高内低的弧线影

B.上肺野均匀致密阴影

C.上缘呈水平线影

D.肋膈角变钝

E.纵膈向健侧移位