A . <0.25%
B . 0.25%~0.60%
C . >0.60%
D . >0.25%
[填空题] 低碳钢含碳量为()%。中碳钢含碳量为()%。高碳钢含碳量为()%。
[单选题]低碳钢含碳量低,含碳量()的低碳钢,产生焊接裂纹的倾向小。A . ≤0.20%B . ≤0.25%C . ≤0.35%D . ≤0.40%
[单选题]低碳钢的含碳量( )。A.<0.10%B.<0.15%C.<0.25%D.<0.20%
[单选题]低碳钢的含碳量( )。A.<0.10%B.<0.15%C.<0.25%D.<0.20%
[单选题]低碳钢的含碳量( )。A.<0.25%B.0.25%~0.60%C.>0.60%D.>0.25%
[单选题]低碳钢的含碳量( )。A.<0.25%B.0.25%~0.60%C.>0.60%D.>0.25%
[单选题]低碳钢的含碳量()。A.小于0.25%B.大于0.25%C.小于0.60%D.大于0.60%
[填空题] 低碳钢含碳量为0.25%,中碳钢的含碳量为()。
[多选题] (低碳钢的含碳量为();中碳钢的含碳量为();高碳钢的含碳量为()。A . <0.25%B . 0.15%~0.45%C . 0.25%~0.6%D . 0.50%~1.5%E . 0.6%~2.11%
[单选题]低碳钢含碳量小于()。A . 0.25%B . 0.30%C . 0.35%D . 0.40%