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2的相反數是A.-2                        B.-                  ...

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問題詳情:

2的相反數是A.-2                        B.-                  ...

2的相反數是

A.-2                         B.-                                             C.                                                    D.2

【回答】

A

知識點:有理數

題型:選擇題

Tags:相反數
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