两个轴心受压柱,A为正确配置箍筋的普通箍筋柱,B为其它条件与A相同的正确配置螺旋筋的柱。A柱和B柱比较,破坏时,B的延性好于A。( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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