Daily Security Management Technology Question (12.1)

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　1. On April 23, 2012, a leak occurred in the liquid ammonia storage tank of a power generation company’s denitration system; the on-site operators immediately reported the incident to the company and activated the emergency response plan for liquid ammonia leaks. The correct sequence of actions for on-site handling is (　　) 　　A. Put on an air respirator—close the relevant valves—turn on the fire hose 　　B. Turn on the fire hose—observe the wind direction indicator at the scene—put on an air respirator 　　C. Observe the wind direction indicator at the scene—turn on the fire hose—close the relevant valves 　　D. Close the relevant valves—put on an air respirator—turn on the fire hose 2. Lightning has destructive effects in various aspects such as electrical, thermal, and mechanical properties, and it can lead to serious consequences, posing a great threat to human life and property. Among the various hazards listed below, which one does not belong to the hazards caused by lightning strikes? (　　) 　　A. Causing severe overloading of transformers 　　B. Destroying electrical lines 　　C. Causing fires and explosions 　　D. Causing electric shock to people Reference: 1.A 2.A