心肌摄取201T1的量,主要与下列哪项因素有关()
A.心肌厚度
B.缺血灶大小
C.冠脉血流量
D.心肌弥散性清除率
E.心肌细胞缺血时间
参考答案:C
密纹滤线栅的界定值是()
A.20线/cm
B.28线/cm
C.30线/cm
D.36线/cm
E.50线/cm
The young man insisted that he______ these watches and______free.
A.stole, set
B.had stolen, be set
C.steal, be set
D.had stolen; must be set