下列哪个是MR临床上最常用的序列
A.自旋回波序列(S
B.反转恢复序列(I
C.快速自旋回波序列(TS
D.梯度回波序列(GR
E.平面回波序列(EP
参考答案:A
— Miss Wang, I feel very nervous with the competition approaching.
— ________.As long as you can finish it, it is a victory.[ ]
A. Take your time
B. Take it easy
C. No problem
D. It's hard to say
要减少吸动作用区的不利影响,内浇道应()
A.做成高梯形
B.置于横浇道之下
C.置于横浇道之上