【多选题】【消耗次数：1】
房屋建筑结构施工图中，梁平法标注“KL3 (2A) 300×650”，表示梁( )。
①
共3跨
②
一端悬挑
③
属于框架梁
④
截面宽度为300 mm
⑤
截面高度为650mm
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