【单选题】石子最大颗粒尺寸不得超过结构截面最小尺寸的 ,同时不得大于钢筋净间距的 3/4
【单选题】石子最大颗粒尺寸不得超过钢筋净距的( )倍。
【单选题】听力原文:The cancer survivors were at higher risk of problems like heart disease and early bone loss. Chemotherapy can damage bone growth during an important period of development. And radiation for some ...
【多选题】根据《钢筋混凝土施工及验收规范》的规定,石子最大颗粒尺寸不得超过( )。