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℃