题干
He ________ get into his own house because he has lost his keys.
A：mustn’t
B：doesn’t have to
C：can’t
D：needn’t
答案(点此获取答案解析）
C
A：mustn’t
B：doesn’t have to
C：can’t
D：needn’t
，则复数
在复平面内对应的点位于
