室内线路最小允许截面，敷设在绝缘支持件上的裸导线，( )。

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铜线1mm²，铝线1mm² 铜线1mm²，铝线2mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²

铜线1mm²，铝线1mm² 铜线1mm²，铝线2.5mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²

铜线1mm²，铝线1mm² 铜线1mm²，铝线2.5mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²

铜线1mm²，铝线1mm² 铜线1mm²，铝线2.5mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²

铜线1mm²，铝线1mm² 铜线1mm²，铝线2.5mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²

裸露导线架空敷设和裸露导线埋地敷设裸露导线架空敷设和绝缘电缆埋地敷设绝缘导线架空敷设和裸露导线埋地敷设绝缘导线架空敷设和绝缘电缆埋地敷设

铜线1mm₂，铝线1mm² 铜线1mm²，铝线2.5mm² 铜线2.5mm²，铝线2.5mm² 铜线2.5mm²，铝线4mm²