连墙件设立规定是_。()
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A.应靠近主节点,偏离主节点的距离不应大于600mm
B.应靠近主节点,偏离主节点的距离不应大于300mm
C.应远离主节点,偏离主节点的距离不应小于400mm
D.应远离主节点,偏离主节点的距离不应小于600mm
答案是:
B.应靠近主节点,偏离主节点的距离不应大于300mm