![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
兔大师灯头长多少mm()
A.500mm超长灯头
B.300mm超长灯头
C.600mm超长灯头
D.400mm超长灯头
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、600mm超长灯头
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.500mm超长灯头
B.300mm超长灯头
C.600mm超长灯头
D.400mm超长灯头
C、600mm超长灯头
A . 0.04-0.05
B . 0.04—0.06
C . 0.04-0.07
D . 0.04—0.08
A.5-31.5
B.5-40
C.5-60
D.20-40
A.优化混凝土配合比
B.合理分层浇筑
C.控制混凝土温度
D.整体连续浇筑时宜为400 - 500mm
E.控制混凝土坍落度在(120+20)mm