单选题 A further ______ into the cause of the disaster revealed that the director was partly to blame because he had not insisted on adequate precautions.
【正确答案】 C
【答案解析】[解析] 考查名词辨析。本句意为“对事故灾难的进一步调查显示,主管因为没有坚持采取足够的预防措施而对此负有部分责任”。题干中空格后面为介词into,能与into连用的有entry“进入;入口处;词条”和inquiry“调查,询问”,但只有inquiry符合句意。B.request“要求,请求”;D.conquest“攻取,征服”。