【判断题】
[178]可燃物质在空气中的含量高于爆炸上限时，不会爆炸，但可能燃烧。
A. 对
B. 错
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答案
A
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【判断题】
[185]离心泵备用泵满足备用条件：润滑良好，冷却水畅通，密封面无泄漏，盘车良好，安全附件齐全好用，热油泵处于预热状态，离心泵入口阀开、出口阀关，泵内充满介。
A. 对
B. 错
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