慢性单纯性鼻炎的主要症状是()。
A.两侧持续性鼻塞
B.清水样鼻涕多
C.双侧交潜性或间歇性鼻塞
D.鼻塞伴有经常性头痛
E.阵发性打喷嚏
参考答案:C
—Sorry,I made a mistake again.
— . Practice more and you will succeed.[ ]
A. Never mind
B. Certainly not
C. Not at all
D. Don't mention it
牙髓中不含以下哪种细胞
A.成纤维细胞B.成釉细胞C.成牙本质细胞D.未分化间充质细胞E.巨噬细胞