刷题宝
  • 刷题首页
题库

题干

下列计算正确的是(   )

A:2x+x=2x2

B:2x2﹣x2=2

C:2x2•3x2=6x4

D:2x6÷x2=2x3

上一题 下一题 0.0难度 选择题 更新时间:2019-09-02 11:38:51

答案(点此获取答案解析)

C

同类题1

  1. 下面哪一项能使不等式成立?()

同类题2

判断下面的说法的对错.


同类题3

The country ,_______ cherry tree flowers ,looks _____ it is a sea of pink snow .

同类题4

   Time spent in a bookshop can be enjoyable. If you go to a 1shop, no assistant will come near to you and say “Can I help you? ” You 2buy anything you don’t want. You may try to 3where the book you want is. But if you can’t , the assistant will lead (引导 ) you there and then he will go away. It seems that he is4selling any books at all.
   Once a medical student found a very useful book in the shop, 5it was too expensive for him to buy. He couldn’t get it from the library, 6. So every afternoon, he went there to read7at a time. One day, however, he couldn’t find the book from its usual place and 8when he saw an assistant signing to him. To his surprise, the assistant pointed to the book in the corner, “I put 9 there so as not to be sold out,” said the assistant. Then he 10 the student to go on with his reading.

同类题5

下列物质的熔点或液化温度由高到低顺序的是
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)