周围血管征()
A.室间隔缺损
B.法洛四联症
C.房间隔缺损
D.动脉导管未闭
E.房室共同通道
参考答案:D
My uncle ______ until he was forty-five . [ ]
A. married
B. didn't marry
C. was not marrying
D. would marry
结构百分比分析法将财务报表单个项目作为总额百分比的表示方法有助于我们考虑到一段时期来各项目的相对重要性,从而发现其变化趋势。