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单选题
难度系数:

1.

有理数a,b,c在数轴上对应的点如图所示,化简|b+a|+|a+c|+|c-b|的结果是(  )




A:

2b-2c

B:

2c-2b

C:

2b

D:

-2c

  • 提示1PHA+5YWI5qC55o2u5ZCE54K55Zyo5pWw6L205LiK55qE5L2N572u5Yik5pat5Ye6YeOAgWLjgIFj44CBZOeahOespuWPt++8jOWGjeagueaNrue7neWvueWAvOeahOaAp+i0qOWOu+aOiee7neWvueWAvOespuWPt+WNs+WPrzwvcD4=