A.100℃±5℃ B.100℃±2℃ C.110℃±2℃ D.180℃±30C E.105℃±3℃
A.NaOH,使pH>10 B.HNO2,使pH<2 C.H2SO4,使pH<2 D.NaOH,使pH>12 E.醋酸鋅
A.氫氣 B.空氣 C.氮?dú)?br /> D.氧氣 E.氬氣