根据<<固定电话交换设备安装工程设计规范>>,局间定时传输链路应优先选择()链路。
参考答案:PDH2Mbit/s
All the new books _______ to the poor village next month.
A.were sent
B.will be send
C.are sent
D.will be sent
磁敏感的MRI序列有()
A.T2WI
B.Flair
C.GRE
D.SWI
E.MRS