铁路局监测站设备故障抢修由（）负责｡
A.铁路局车辆检测所
B.车辆段动态检测车间
C.铁路局监测站自行负责
D.铁路局信息所
参考答案：A
From his ______ look, we could see the boy was ______ of the stranger.
A．terrified; terrified
B．terrifying; terrifying
C．terrifying; terrified
D．terrified; terrifying
根据“tTeacher”表的结构，判断并设置主键。
