肺痈其成痈化脓的病理基础是（）。
参考答案：热壅血瘀
Orange represents _____. It can bring you success and cheer you up when you are feeling sad. [ ]
A. wisdom
B. joy
C. energy
D. sadness
属于口腔黏膜癌前病变的是
A．白斑
B．红斑
C．扁平苔藓
D．盘状红斑狼疮
E．阿氟它溃疡
