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单项选择题
A.625MPa,625MPa
B.630MPa,625MPa
C.625MPa,615MPa
D.630MPa,630MPa
单项选择题
A.410MPa,400MPa
B.405MPa,395MPa
C.415MPa,400MPa
D.410MPa,395MPa
单项选择题
A.双倍复检
B.合格
C.不合格
D.无法判定
单项选择题
A.520MPa,545MPa,555MPa
B.525MPa,545MPa,550MPa
C.520MPa,520MPa,550MPa
D.520MPa,545MPa,550MPa
单项选择题
A.50mm
B.55mm
C.60mm
D.65mm