T2*值()
A、短于T2
B、等于T2
C、长于T2
D、等于T1
E、长于T1
参考答案:A
—Dinner is ready. Help yourself!
—Wow! It delicious. Could you please tell me how to cook it? [ ]
A. tastes
B. looks
C. sounds
D. feels
下列哪项与螺旋CT扫描无关()
A.扫描时间的延长
B.检查床单向连续移动
C.X线球管的负荷增加
D.X线球管冷却性能必须提高
E.基于滑环技术的扫描架连续旋转运动