摘要:下列各组数中互为相反数是( ), A.2与- B.32与(-3)2 C.32与-32 D.-23与(-2)3
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下列各组代数式中互为相反数的有( )
(1)a-b与-a-b;(2)a+b与-a-b;(3)a+1与1-a;(4)-a+b与a-b.
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(1)a-b与-a-b;(2)a+b与-a-b;(3)a+1与1-a;(4)-a+b与a-b.
| A.(1)(2)(4) | B.(2)与(4) | C.(1)(3)(4) | D.(3)与(4) |