消防安全ななぞなぞ（11.11）
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1﹑騒音禁止（職業衛生の四字熟語） 2﹑霊霄殿の修理（用語） 参考答え： 1.騒音制御 2.高所作業
1. 噪音制御 2. 高所作業
1、騒音制御 2、高所作業
1. 噪音制御 2. 高所作業
1、騒音制御 2、高所作業
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