如图 , M , N , P , R 分别是数轴上四个整数所对应的点 , 其中有一点是原点 , 并且 MN = NP = PR = 1. 数 a 对应的点 A 在 M 与 N 之间 , 数 b 对应的点 B 在 P 与 R 之间 , 若 | a |+| b |=3, 则原点是 ( )
A.
. N 或 P
B.
. M 或 R
C.
. M 或 N
D.
. P 或 R
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】阅读理解。 Whether you're considering a first cell phone for your or trying to limit various functions on your child's existing cell phone, it's important to understand the various controls and techno...
【简答题】用方框内所给单词的适当形式填空。 happy, close, angry, parent, listen, make, if, long, but, important Are you the only child in the family? If so, you are the most 1 in your family. 2 are the closest people...
【简答题】阅读理解。 Children are missing an important part of their education because parents cannot afford their after-school activities. Half of parents in Wales are saying'no'to after-school activities because t...