数字化保护中GOOSE、SV组网方式比点对点方式优势有哪些()。
A.减少交换机的数量
B.提高保护可靠性
C.减少装置光口数量
D.加快保护动作
参考答案:A, C
The film was so that I was when I saw it.
A.frightening ; frightened
B.frightened ; frightening
C.frightened ; frightened
D.frightening; frightening
叙述用浓度为Nmol/L的HCl标准溶液双指示剂法测定烧碱中NaOH和Na2CO3含量的步骤。