第21题: [单项选择]The Bureau of Public Security has decided to hold an inquiry to find out the cause of the big fire. A. investigation B. research C. examination D. inquest 参考答案:A 答案解析:inquiry调查,查询。investigation调查,研究。research研究,探讨(多指学术性研究)。examination检查,细查。inquest审理,审问。