2019 Junior Kangaroo-学生用卷
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2022-12-26 21:08:34
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2019JuniorKangaroo-学生用卷学生用卷1、【来源】(2019JuniorKangarooQuestion#1)Rianahasbeenaskedtoerasedigitsfromthenumber12323314toobtainanumberwhichreadsthesamefromlefttorightasitdoesfromrighttoleft.WhatisthesmallestnumberofdigitsRiananeedstoerase?()A.1B.2C.3D.4E.52、【来源】(2019JuniorKangarooQuestion#2)Thediagramshowssquaresofthreedifferentsizesarrangedintoarectangle.Thelengthofeachsideofthesmallestsquaresis20cm.AdamAntwalksalongthepathmarkedfromto.HowfardoesAdamwalk?()A.380cmB.400cmC.420cmD.440cmE.460cm
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