有20位运动员参加长跑,他们的参赛号码分别是1、2、3……20,至少要从中选出多少个参赛号码,才能保证至少有两个号码的差是l3的倍数?(  )A.12 B.15

有20位运动员参加长跑,他们的参赛号码分别是1、2、3……20,至少要从中选出多少个参赛号码,才能保证至少有两个号码的差是l3的倍数?(  )A.12 B.15

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1,3,3,-1,15,(  )A.175 B.215 C.255 D.295

1,3,3,-1,15,(  )A.175 B.215 C.255 D.295

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Leafman Capital Purchases Josee Group Leafman Capital, a leading Canadian i...

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JULIE’s SNACK BAR The Best New Restaurant Town!! 1 1 45 Whittaker Road ...

JULIE’s SNACK BAR The Best New Restaurant Town!! 1 1 45 Whittaker Road ...

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