题干
( )
A：Sanya is in the north of China.
B：Sanya is in the south of China.
C：Shenyang is in the south of China,
答案(点此获取答案解析）
B
( )
A：Sanya is in the north of China.
B：Sanya is in the south of China.
C：Shenyang is in the south of China,
是虚数单位，复数
的共轭复数
在复平面内对应点落在第（ ）象限． （ ）