1.依据《建筑结构制图标准》(GB/T50105)，在结构平面图中配置双层钢筋时，底层钢筋的弯钩应()，顶层钢筋的弯钩应()。

A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959810120297.png">

B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/17049598101461008.png">

C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/170495981021781.png">

D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959810237741.png">

A.美观

B.节省空间

C.施工方便

D.更好承受向下的力

A.直线

B.带弯钩的直线

C.曲线

D.双曲线

A.8120mm

B.8120mm

C.8180mm

D.8200mm

A.7160mm

B.7200mm

C.7160mm

D.7260mm

A.6172mm

B.6100mm

C.6256mm

D.6292mm

A.5980mm

B.6100mm

C.6100mm

D.6200mm

A.钢结构自重轻

B.钢结构塑性好

C.钢结构稳定性好

D.钢结构施工周期短

E.钢结构刚度大

A.立面图

B.断面图

C.平面图

D.钢筋详图