刷题宝
  • 刷题首页
题库

题干

函数,已知在时取得极值,则=(  )

A:2

B:3

C:4

D:5

上一题 下一题 0.0难度 选择题 更新时间:2018-12-17 10:59:49

答案(点此获取答案解析)

D

同类题1

.
Men will ________ all the natural resources if they continue consuming them like that.

同类题2

根据短文内容的理解,选择正确答案。    

C

    My grandfather Jack is 96 years old,and he has had an interesting life. He has travelled a lot in his life in the Far East. He visited the Taj Mahal in India and the Pyramids in Egypt. He hunted(狩猎) lions in Africa, and rode a camel in the Sahara Desert. He says the most beautiful place he has travelled to is Kathmandu in Nepal.

    Jack has married twice. His first wife died when she was 32. He met his second wife Maria while he was cycling round France. They have been married for 50 years, and they have lived happily in a small village since they got married.

    Jack says that he has never been ill in his life. The secret of good health, according to my grandfather, is exercise. He goes swimming every morning. He has done this since he was a boy. He also has a glass of wine every night!Perhaps that is his secret!

同类题3

计算: 27 ⋅83÷12 =____.

同类题4

离心率 e=12  的椭圆,它的焦点与双曲线 x23−y2=1  的焦点重合,则此椭圆的方程是____

同类题5

如图,AB是⊙O的直径,CD是⊙O的弦,∠ABD=58°,则∠BCD的度数为____.

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)