3+2=( )

1
3+2=( ) A 4 B 5 C 6 D 7 正正 错错

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A 4. 3+2=( ). B 5. 正确. 错误. C 6. D 7. - PowerPoint PPT Presentation

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Page 1: 3+2=(   )

3+2=( )

A 4 B 5

C 6 D 7 正确错误