the end of the match, we had kicked three goals. [ ]
A. With
B. In
C. By
答案:C
有明显流幅的钢筋,其性能的基本指标有()
A、屈服强度
B、延伸率
C、强屈比
D、焊接性能
E、冷弯性能
生活垃圾对大气有什么影响?