问题
单项选择题
The priority of EGC messages is classified by().
A.distress, urgent and safety
B.safety and routine
C.urgent, safety and routine
D.distress, urgent, safety and routine
答案
参考答案:D
The priority of EGC messages is classified by().
A.distress, urgent and safety
B.safety and routine
C.urgent, safety and routine
D.distress, urgent, safety and routine
参考答案:D