A.減小 B.保持不變 C.增大
A.±2.5、±2.5 B.+2.0、+2.5 C.+2.5、+2.0 D.+2.0、+2.0
A.0.05~0.08 B.0.08~0.10 C.0.09~0.11 D.0.12~0.14
A.結構 B.厚度 C.均勻力
A.2% B.18% C.50%