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【单选题】
永济桥 座桥梁用( )。纵横交错,一丝不差,结构精密,优美壮观,是侗族文化在建筑艺术上的结晶。A.
凿榫接合，大条斜穿直套
B.
大木凿榫接合，大小木条斜穿直套
C.
大木凿榫接合，大小木条竖穿直套
D.
凿榫接合，大条竖穿直套
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