His professional career spanned 16 years. 

A.sincere

B.changed

C.moved

D.lasted

患儿，12岁，查体发现胸骨左缘第2肋间响亮收缩期杂音向左锁骨下传导，考虑为（）

A.房间隔缺损

B.室间隔缺损

C.法洛四联症

D.房室共同通道

E.动脉导管未闭