【单选题】【消耗次数：1】
当多台塔式起重视在同一施工现场交叉作业时，低位塔式起重机的起重臂端部与另一台塔式起重机的塔身之间的距离不得小于（）。
①
1m
②
2m
③
4m
④
5m
参考答案：
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相关题目
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①
A工作环境温度42℃
②
B安装架设时塔式起重机顶部3s时距平均瞬时风速15m/s
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