.

When asked about the murder last night, he wore a smile all the way to appear calm, but the sweat on his forehead _____ him______.

A．gave… out

B．gave… away

C．gave…up

D．gave…off

关于胸壁结核的临床表现特点，下列错误的是（）。

A.一般多无明显全身症状

B.明显的红、肿、热、痛

C.溃破形成经久不愈的溃疡

D.可形成曲折、分叉多的窦道

E.脓液黄白色稀薄，内含干酪样物质