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Which category is the highest-level of emergency planning?
选择一项：
A. Emergency disaster planning.
B. Incident.
C. Disaster.
D. Emergency disaster planning and emergency incident planning.
E. Leaflets about emergency planning.
F. The ambulance service, the police and fire departments.
G. It is Tom.
H. The operator of 911.
选择一项：
A. Emergency disaster planning.
B. Incident.
C. Disaster.
D. Emergency disaster planning and emergency incident planning.
E. Leaflets about emergency planning.
F. The ambulance service, the police and fire departments.
G. It is Tom.
H. The operator of 911.
参考答案