铁锈色样痰可见于（）
A.肺炎克雷伯杆菌肺炎
B.肺泡出血
C.肺炎球菌性肺炎
D.左心衰竭
E.肺吸虫病
参考答案：B, C, E
_______ the article a second time, the meaning will become clearer to you.[ ]
A. When you read
B. While reading
C. If reading
D. You having read
Passage 2
