【判断题】【消耗次数：1】
在高压线下方作业，必须保持与上方高压线有不小于2m的安全距离。（）
①
正确
②
错误
参考答案：
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相关题目
【单选题】
钻塔与高压线的安全距离：距10kV以上的高压线不小于（ ）m，距10kV以下的高压线不小于（ ）m。
①
A50,30
②
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③
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④
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