单侧肺透亮度增加，可见于（）
A.肺含铁血黄素沉着病
B.Macleod病
C.镰刀综合征
D.乳癌根治术后
E.脊柱侧弯
参考答案：B, C, D, E
论述施工总平面图的概念和主要内容。
Young Tom ______ school for only four months. [ ]
A. was in
B. was in
C. went to
D. has gone to
