在颈椎MR检查中.消除运动伪影的方法有()
A.预饱和技术
B.流动补偿技术
C.周围门控和心脏门控技术
D.改变相位编码和频率编码方向
E.以上全对
参考答案:E
Frank can’t find ______ dictionary. Can you lend _____ to ______.
A.my; your; he
B.her; mine; her
C.his; yours; him
D./; yours; his
如何进行吊车梁平面位置校正?