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7,7,9,17,43,()A119 B117 C123 D121
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:7 7 9 17 43 ()
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1/15,4/35,7/63,10/99,()。 A.14/121 B.17/133 C.13/143 D.17/152
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7791743() A.119B.117C.123D.121
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7,7,9,17,43,()A119 B117 C123 D121
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如果N=2×3×5×7×121,则下列()项可能是整数。A.79N/110B.17N/38C.N/72D.11N/49
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7 7 9 17 43 ( ) A.119 B.117 C.123 D.121