A.10%
B.12%
C.15%
D.18%
A.10%
B.12%
C.15%
D.18%
A.0.3%
B.0.5%
C.1.0%
D.2.0%
A.4%
B.6%
C.8%
D.10%
A.3%
B.6%
C.9%
D.12%
A.5%
B.6%
C.7%
D.8%
A.5
B.6
C.7
D.8
A.300m
B.400m
C.500m
D.600m
A.70米
B.80米
C.90米
D.100米
A.抗剪切强度
B.抗压强度
C.抗拉强度
D.抗弯强度