单项选择题
A.0.1-0.5MPa B.0.1-1.0MPa C.0.2-1.0MPa
A.99.8% B.99.7% C.99.9%
A.偶然误差、系统误差 B.过失误差、系统误差 C.偶然误差、系统误差、过失误差
A.95% B.96.3% C.97% D.97.3%
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