单项选择题
A.0.50~0.65 B.0.60~0.75 C.0.70-0.85 D.0.85~0.95
A.热轧带肋钢筋 B.冷轧带肋钢筋 C.热轧圆盘条 D.冷拉钢筋
A.6% B.8% C.10% D.12%