24i的知识精选

2i是虚数单位,复数   A.-2+4i                B.-2-4i            ...
问题详情:2i是虚数单位,复数   A.-2+4i                B.-2-4i                 C.2+4i                      D.2–4i【回答】【*】A【解析】。知识点:数系的...
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