每一个级别的危机事件,都有发生、发展和()的阶段。
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A drop in compression pressure in one cylinder of a diesel engine can be caused by()
A. a leaking fuel injection nozzle
B. a clogged air filter
C. early fuel injection
D. burned valve
起重机械使用后,使用单位应当监督施工单位依法履行安装告知、监督检验等义务
A. 正确
B. 错误
根据《消费者权益保护法》规定,消费者享有哪九项权利?