对于普通钢筋混凝土结构,当其他条件不变时,钢筋的直径细而密,可使裂缝的宽度( ),与光圆钢筋相比,采用变形钢筋将使裂缝宽度( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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