肺炎球菌肺炎的病理改变主要是
A.肺泡内炎症渗出性实变
B.以上都不是
C.肺泡壁溃疡
D.肺泡坏死
E.肺泡壁充血,水肿
参考答案:A
24.The students were ____ over the ____ problem, listening to the teacher with a ____ expression on their faces.
A.puzzled; puzzling; puzzling
B.puzzled; puzzling; puzzled
C.puzzling; puzzling; puzzled
D.puzzling; puzzled; puzzling
“互联网+”创业创新这讲提到,新一代大工业代替手工业时,最大的变化是()。
A.成本
B.生产工具
C.生产关系
D.利润