维生素D缺乏性佝偻病可靠的早期诊断指标是
A.血清钙浓度降低
B.血清磷浓度降低
C.血清碱性磷酸酶增高
D.血1,25-(O2D3降低
E.血PTH降低
参考答案:D
此门静脉CT后处理图像为()
A.CPR(曲面重组)
B.SSD(表面阴影遮蔽)
C.VE(仿真内镜)
D.MIP(最大密度投影)
E.MPR(多方位重组)
The total return on a collateralized futures position is composed of the change in:()
A. futures price plus the interest income on the futures.
B. treasuries price plus the interest income on the futures.
C. futures price plus the interest income on the Treasuries.