- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
熱軋帶肋鋼筋冷彎時(shí)，彎曲角度?。ǎ?/h4>
A.45°
B.90°
C.135°
D.180°
A.45°
B.90°
C.135°
D.180°
