冠状动脉瘘常见的合并畸形包括（）
A.法洛四联症
B.房间隔缺损
C.室间隔缺损
D.动脉导管未闭
E.右心室双出口
参考答案：A, B, C, D
Evidence has been found through years of study _____ children’s early sleeping problems are likely to continue when they grow up.
A．why
B．how
C．that
D．whether
