刷题宝
  • 刷题首页
题库

题干

已知a为实数,若复数z=a2﹣3a﹣4+(a﹣4)i为纯虚数,则复数a﹣ai在复平面内对应的点位于(   )

A:第一象限

B:第二象限

C:第三象限

D:第四象限

上一题 下一题 0.0难度 选择题 更新时间:2018-09-03 04:37:11

答案(点此获取答案解析)

B

同类题1


 One rainy morning, my phone woke me up. It was a phone call from a1 driver who had my friend’s mobile phone. 2 , my friend had left it in the taxi the night before.

 A 3morning for taxi drivers in this big city is a very busy time. He asked me where he could meet me to give me the mobile phone. I told him the street where I lived. Then I quickly 4and got dressed in order to meet   5 on the corner.

 My friend had only recently moved to this city. So his mobile phone was very  6 to him.

 When the taxi driver arrived, I thanked him and praised him  7 having such a kind and beautiful heart. I asked him for his name,  8 my friend himself could thank him. He said my praises and 9 were all that he needed. Then he drove off.

 I told my friend how I had received his 10 . Hearing this, he was thankful and said kindness was really everywhere in this world.

同类题2

选择你听到的单词(  )

同类题3

____ bikes is my hobby.  

同类题4

水的密度是 ____ kg/m3,合 ____ g/cm3.它表示____ 

同类题5

We need lots of ___________ every day.

小学学科试题库
  • 小学语文
  • 小学数学
  • 小学英语
  • 小学科学
  • 小学道德与法治
初中学科试题库
  • 初中数学
  • 初中语文
  • 初中英语
  • 初中物理
  • 初中化学
  • 初中生物
  • 初中政治
  • 初中历史
  • 初中地理
  • 初中历史与社会
  • 初中科学
  • 初中信息技术
高中学科试题库
  • 高中语文
  • 高中数学
  • 高中英语
  • 高中物理
  • 高中化学
  • 高中生物
  • 高中政治
  • 高中历史
  • 高中地理
  • 高中信息技术
刷题宝 没有分数是刷题提高不了的! 粤ICP备12066032号

本站仅为免费收集试题提供给学生刷题,不做任何盈利性活动!如无意侵犯您的合法权益,联系站长删除处理(QQ:2572127418)