下列哪一种阑尾炎最易引起穿孔()
A.急性单纯性阑尾炎
B.急性蜂窝织炎性阑尾炎
C.急性坏疽性阑尾炎
D.慢性阑尾炎急性发作
E.慢性阑尾炎
参考答案:C
-- Have you seen ______pen? I left it here this morning
-- Is it ______black one? I think I saw it somewhere
A.a;the
B.the;the
C.a;a
D.the;a
单循环病害又被称为积年流行病害。