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72-42除以7等于几
"72-42除以7等于几"...72-42除以7等于几
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72-40除以4等于几
"72-40除以4等于几"...72-40除以4等于几
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72-12除以4等于几
"72-12除以4等于几"...72-12除以4等于几
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72-63除以4等于几
"72-63除以4等于几"...72-63除以4等于几
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72+28除以4等于几
"72+28除以4等于几"...72+28除以4等于几
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72除以4等于多少?
"72除以4等于多少?"...72除以4等于多少?