事故调查组在事故调查的基础上，分析并明确事故发生、扩大的（）
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查明电网事故造成的损失，包括波及范围、（）、损失电量、用户性质
荀子在其著作《君道》篇中说：“君者，民之原也；原清则流清，原浊则流浊。”请简述这句话的意思。
Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）
A. use of low viscosity oil in cold weather
B. increased moisture content of inlet air in cold weather
C. increased drag of pistons and bearings due to increased oil viscosity
D. higher compression pressures reached due to smaller clearances existing in the engine during cold weather
Which two are valid and equivalent？（）
C. int i；
D. int i；
E. int i；
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