单项选择题
A.单向拉伸 B.高应力反复拉压 C.大变形反复拉压 D.工艺检验
A.D+2.5d B.D+3d C.(D+3d)±0.5d D.(D+2.5d)±0.5d
A.100 B.103 C.104 D.103.5