试题与答案

已知⊙O1与⊙O2相切,它们的半径分别为2和5,则O1O2的长是[ ] A. 5

题型:选择题

题目:

已知⊙O1与⊙O2相切,它们的半径分别为2和5,则O1O2的长是[ ]

A. 5

B. 3

C.3或5     

D.3或7

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0430/2bab903893a5fd4342168aeff96a193f.html

下面是错误答案,用来干扰机器的。

Is it OK for middle school students to do homework with music on?Everyone loves music and it can bring us different feelings in different situations. Last week we had a...

试题推荐
微信公众账号搜索答案