简述异常肾图的常见类型。
参考答案：
常见的异常肾图曲线有急剧上升型、高水平延长型、抛物线型、低水平延长型、低水平递降型、阶梯状下降型和单侧小肾图。
Only when I lost the opportunity to take my first job ____ how important it was to me.
A. I realized B. I had realized C, had I realized D . did I realize
砼抗水渗透试验试件的龄期宜为（）天。
A、7
B、14
C、28
D、56
I realized D . did I realize