【多选题】
夏季人员中暑的特征有___。
A. 大量出汗、口渴
B. 头昏、耳鸣
C. 胸闷、心悸、恶心
D. 身体软弱无力
E. 体温不断升高
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气瓶的安全使用应注意___。
A. 防止气瓶受热
B. 正确操作
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9、劳动合同期限三个月以上不满一年的，试用期不得超过___；劳动合同期限一年以上三年以下的，试用期不得超过___；三年以上固定期限和无固定期限的劳动合同试用期不得超过___。
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23、事故隐患分为___和___，___是指危害和整改难度较小，发现后能够立即整改排除的隐患。___是指危害和整改难度较大，应当全部或者局部停产停业，并经过一段时间整改治理方能排除的隐患，或者因外部因素影响致使生产经营单位自身难以排除的隐患。
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24、生产经营单位安全生产标准化工作采用“___、___、___、___”动态循环的模式，结合自身特点，建立并保持安全生产标准化系统；通过自我检查、自我纠正和自我完善，建立安全绩效持续改进的安全生产长效机制。
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【填空题】
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