题目内容
A.-I B.-5i C.-2-3i D.2-3i
解析：===-2，由已知得-2=a+3i,
∴a=-2-3i.
答案：C
】已知=a+3i,则a等于
A.－i B.－5i C.－2－3i D.2－3i
=a+3i,则a等于（ ）=
=
=-2，由已知得-2=a+3i,
=a+3i,则a等于（ ）=a+3i,则a等于（ ）===-2，由已知得-2=a+3i,
=a+3i,则a= .
=a+3i,则a= .
=a+3i,则a=_________.
=a+3i,则a等于