事故现场设有临时线路所时,车站值班员向封锁区间发出救援列车时,应商得()的同意。
A.线路所值班员
B.列车调度员
C.对方站
D.救援人员
参考答案:A
首先考虑的诊断是
A.牙痛
B.三叉神经痛
C.颞颌关节病
D.鼻窦炎
E.单纯感觉性发作(癫癎)
The employee must have been dismissed by the employer last month, ____ he?
A.haven't
B.hasn't
C.didn't
D.wasn't