很少引起咽痛的疾病是()。
A.咽角化症
B.急性咽炎
C.急性扁桃体炎
D.扁桃体周脓肿
E.急性会厌炎
参考答案:A
This noise this family;they all came out of the house. [ ]
A. comforted
B. competed
C. alarmed
D. blew
压力过滤罐中垫层的作用是什么?