胸部X线示肺血多，右心房、右心室大（）
A.Roger病
B.房间隔缺损
C.动脉导管未闭
D.法洛四联症
E.室间隔缺损
参考答案：B
The boy was so careless that the glass fell from his hand and it _____ on the floor.[ ]
A. broke in
B. broke down
C. broke up
D. broke out
乳腺腺体深层的肌性结构是（）。
A.胸大肌
B.胸小肌
C.背阔肌
D.肩胛提肌
E.以上均不是
