肺痈溃脓期的主要病理是（）

A、热伤肺气

B、热壅血瘀

C、肉腐血败

D、热毒留恋

E、痰浊上蒙

You need to take notes at the meeting so make sure _________ a pen              and some paper with you.

A．bring

B． to bring

C．bringing

D．not bring