梁与墙体交接处,梁侧模板伸入墙内或梁底模伸入墙内不小于( )mm
A. 500
B. 600
C. 700
D. 800
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对于跨度6m的钢筋混凝土连续梁,当设计无规定时,其梁底木模板中部应采用的起拱高度合理的是( )
A. 5mm
B. 10mm
C. 25mm
D. 20mm
楼板支撑架纵横向立杆间距不得大于( )
A. 1.2m
B. 1.5m
C. 1.8m
D. 2.0m
A shopkeeper has reduced litter in her village by 40%.
A. 对
B. 错
She writes the children’s names on the things they buy.
A. 对
B. 错