—How's the weather _____?

—It's snowing.[ ]

A. in there

B. on there

C. from there

D. there

最易引起阑尾穿孔的是（）

A.急性单纯性阑尾炎

B.急性坏疽性阑尾炎

C.慢性阑尾炎

D.亚急性阑尾炎

E.慢性阑尾炎急性发作