题干

有理数a,b在数轴上对应的位置如图所示,那么代数式
|
a
+
1
|
a
+
1
-
|
a
|
a
+
b
a
|
a
b
|
-
1
b
|
b
1
|
的值是( )

A:-1

B:0

C:1

D:2

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答案(点此获取答案解析)

D

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                                                                                                          《饮酒》
                                                                                                            陶渊明

                                                                                             结庐在人境,而无车马喧。
                                                                                             问君何能尔,心远地自偏。
                                                                                             采菊东篱下,悠然见南山。
                                                                                             山气日夕佳,飞鸟相与还。
                                                                                              此中有真意,欲辩已忘言。