單項(xiàng)選擇題
A.5m B.6m C.7m
A.電流 B.電壓 C.電阻
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.偶然誤差、系統(tǒng)誤差 B.過失誤差、系統(tǒng)誤差 C.偶然誤差、系統(tǒng)誤差、過失誤差
A.95% B.96.3% C.97% D.97.3%
A.-45℃ B.-42℃ C.-40℃ D.-43℃
A.2.5MpaB.3.0MpaC.3.2Mpa
A.1000A B.900A C.920A
A.2.0-2.5Mpa B.2.5-3.0Mpa C.2.5-2.7Mpa
A.150-200℃ B.200-250℃ C.250-300℃