MR水成像技术应用的是()。
A.重T1WI序列
B.轻T1WI序列
C.轻T2WI序列
D.重T2WI序列
E.质子加权成像序列
参考答案:D
I didn't hear you because I the news on the radio.
A.listen to
B.am listening to
C.listened to
D.was listening to
()支座病害不宜采用下垫干硬砂浆。
A、支座不平
B、支座歪斜超限
C、支座个别悬空
D、新做支承垫石厚度较薄