[单项选择]《事故调查与分析管理制度》中锅炉运行中的压力超过工作安全门动作压力的()视为国华电力内部认定的一般事故。 A. 1% B. 2% C. 3% D. 5%
参考答案:C
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第1题: [单项选择]{{U}}Practically{{/U}} all species of animals communicate either through sounds or through a large repertory of soundless codes. A. Simultaneously B. Almost C. Absolutely D. Basically 参考答案:B