在1-20中,
質(zhì)數(shù)有2,3,5,7,11,13,17,192,3,5,7,11,13,17,19;
合數(shù)有4,6,8,9,10,12,14,15,16,18,204,6,8,9,10,12,14,15,16,18,20;
奇數(shù)有1,3,5,7,9,11,13,15,17,191,3,5,7,9,11,13,15,17,19;
偶數(shù)有2,4,6,8,10,12,14,16,18,202,4,6,8,10,12,14,16,18,20.
【答案】2,3,5,7,11,13,17,19;4,6,8,9,10,12,14,15,16,18,20;1,3,5,7,9,11,13,15,17,19;2,4,6,8,10,12,14,16,18,20
【解答】
【點評】
聲明:本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有,未經(jīng)書面同意,不得復制發(fā)布。
發(fā)布:2024/8/28 5:0:8組卷:86引用:4難度:0.5
把好題分享給你的好友吧~~