【简答题】![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
当图纸标有:KL7(3)300*700Y500*250表示?( ) A.7号框架梁,3跨,截面尺寸为宽300、高700,第三跨变截面根部高500、端部高250 B.7号框架梁,3跨,截面尺寸为宽700、高300,第三跨变截面根部高500、端部高250 C.7号框架梁,3跨,截面尺寸为宽300、高700,第一跨变截面根部高250、端部高500 D.7号框架梁,3跨,截面尺寸为宽300、高700,框架梁加腋,腋长500、腋高250
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAA5ElEQVRYR2NkGGDAOMD2M+B0wKpVq9huv/jbxPD/fxwDA4MkhQ59zsDIuEhVgrkuLCzsF7JZOB3QOml5B8P//+UUWoyqnZGxszovsoI4B0xc9gyfzxmZmb2rcsK3IRvWMWm599///7fgcfTz6vwoKWId8B+f75kZGX0q8iK3kugAhur8KJRQxx0FE5fhdQC5UTPqgNEQGA2B0RAYDYHREBgNgaETAuTW96TqG7yt4tbRFhGRIQBqHTP9+8dIoDUMTxqk5AK8zXKYiaDWMYhNpANIaJYPdMdkwLtmpOZnctUPeDkAAP6tmiH1ggTLAAAAAElFTkSuQmCC)
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参考答案:
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参考解析:
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