【判断题】铁铵矾指示剂法是以NH4Fe(SO4)2·12H2O为指示剂,在HNO3酸性介质中测定银盐或卤化物含量的方法。
【多选题】Reading different news reports of the same news events can help _____.
B.
remember the memorial day
C.
understand unknown words
D.
find different viewpoints
【判断题】When reading news in English, we should look into every new word that we come across.
【判断题】铁铵矾指示剂法是以NH4Fe(SO4)2.12H2O为指示剂,在HNO3的酸性介质中测定银盐或卤化物含量的方法。