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判斷題

用水滅火時，水源應從火源的外圍逐漸逼近火區(qū)中心。

答案：正確

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矽肺病是由于長期吸入過量巖塵造成的。

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停送電的操作必須嚴格執(zhí)行“誰停電、誰送電”的停送電原則。嚴禁約時停送電或借他人停電時機檢修同一電源線路上的電氣設備。

答案：正確