A.3
B.7
C.14
D.28
A.3
B.7
C.14
D.28
A.9.0MPa
B.9.6MPa
C.9.53MPa
D.10.0MPa
A.9.0
B.9.53
C.9.6
D.10.0
A.50
B.60
C.70
D.80
A.100mm
B.125mm
C.150mm
D.200mm
A.100
B.150
C.200
D.240
A.31.5
B.36.0
C.36.3
D.41.5
A.11.5MPa
B.11.77MPa
C.11.8MPa
D.12.0MPa
A.边长为150mm
B.确保试验结果一致性
C.提供国际标准
D.边长为200mm