在腰椎MR成像中,预饱和技术常用抑制
A.吞咽运动伪影
B.心搏伪影
C.呼吸运动伪影
D.化学位移伪影
E.逆向流动液体信号
参考答案:C
After years of research, he found the key ____ differences between species.
A.to explain
B.to explaining
C.of explaining
D.explaining
风险迁徙类指标包括正常贷款迁徙率和不良贷款迁徙率,属于静态指标。( )