设
,
,则
( )。·
·
·
·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/169777126207585aa47cf98e947729d9d003cdcf401c3image109.png"
出自:河南工业大学钢筋混泥土结构
,
,则
( )。
·
·
·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/169777126207585aa47cf98e947729d9d003cdcf401c3image109.png"