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一个机器猫每秒前进或后退一步,程序设计人员让机器猫以每前进3步,然后再后退2步的...
一个机器猫每秒前进或后退一步,程序设计人员让机器猫以每前进3步,然后再后退2步的规律移动;如果将此机器猫放在数轴的原点上,面向正的方向,以1步的距离为1个单位长,令P(n)表示第n秒时机器猫所在的位置的坐标,且P(0)=0,那么下列结论中错误的是( )
A.P(3)=3
B.P(5)=1
C.P(101)=21
D.P(103)<P(104)
考点分析:
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