本课配套习题挑战模式1/5
单选题
难度系数:
1.按数列的排列规律猜想数列 的第10项是( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruWlh+WBtuehruWumuato+i0nw==
- 提示2:IOehruWumuWIhuWtkOWSjOWIhuavjQ==
- 答案:Qw==
6Kej77ya54m554K577ya5YiG5a2Q5Li65YG25pWw77yM5YiG5q+N5Li65aWH5pWw77yM5aWH5pWw5Liq5Li65q2j77yM5YG25pWw5Liq5Li66LSf77yMPGJyPuaJgOS7pTxpbWcgd2lkdGg9MTUyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZGLzJDL3JCQUNGRk5yUE1YQ2FTWnlBQUFDcGlyQ1U1UTk0Ni5wbmciPg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.找规律: ( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOW8j+WtkOeahOespuWPt++8muWlh+aVsOS4quaYr+ato+WPt++8jOWBtuaVsOS4quaYr+i0n+WPtw==
- 提示2:IOWIhuWtkOaYr+i/nue7reeahOWlh+aVsA==
- 提示3:IOWIhuavjeWQjui+ueeahOaVsOeahOWIhuavjeaYr+WJjei+ueeahOaVsOeahOWIhuavjeeahDLlgI3lh48xLiDmja7mraTljbPlj6/liKTmlq0=
- 答案:QQ==
6Kej77ya5pyJ5Lul5LiL54m554K5MS4g5byP5a2Q55qE56ym5Y+377ya5aWH5pWw5Liq5piv5q2j5Y+377yM5YG25pWw5Liq5piv6LSf5Y+3PGJyPjIuIOWIhuWtkOaYr+i/nue7reeahOWlh+aVsDxicj4zLiDliIbmr43lkI7ovrnnmoTmlbDnmoTliIbmr43mmK/liY3ovrnnmoTmlbDnmoTliIbmr43nmoQy5YCN5YePMS4g5o2u5q2k5Y2z5Y+v5Yik5patPGJyPjxpbWcgd2lkdGg9MTUyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZGLzJDL3JCQUNGRk5yUEw3aVJhSVNBQUFDVVl0RzR5QTkwOS5wbmciPg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.观察下列数字的排列规律,然后填入适当的数:3,-7,11,-15,19,-23,27,( ).
A: 31 |
B: -31 |
C: 37 |
D: -37 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOehruWumuespuWPt+WPmOWMluinhOW+i++8jOespuWPt+aYr++8muWlh+aVsOS4quaXtuS4uuato++8jOWBtuaVsOS4quaXtuS4uui0nw==
- 提示2:IOaVsOWtl+aIkOetieW3ruaVsOWIl++8jOWFrOW3ruS4ujQ=
- 答案:Qg==
6Kej77ya5qC55o2u6aKY5oSP77yM5pys5YiX5pWw5piv5YmN5LiA5Liq5pWw55qE57ud5a+55YC85YqgNOetieS6juWQjumdoueahOaVsOeahOe7neWvueWAvO+8jOespuWPt+aYr+ato+i0n+ebuOmXtOeahO+8jDI3KzQ9MzHvvIzlpYfmlbDkuKrml7bkuLrmraPvvIzlgbbmlbDkuKrml7bkuLrotJ8u5pWF5bqU5aGrLTMxLiA=
本课配套习题挑战模式4/5
单选题
难度系数:
4.−3,5,−7,9,−11,13,… 第𝑛项为( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOehruWumuespuWPt+WPmOWMluinhOW+i++8mi3vvIwr77yMLe+8jCvvvIwt77yMKyzigKbvvJvnlKjvvIgtMe+8iTxzdXA+bjwvc3VwPuihqOekuuespuWPt+WPmOWMlg==
- 提示2:IOaVsOWtl+inhOW+izPvvIw177yMN++8jDnvvIwxMe+8jDEz77yM4oCm562J5beu5pWw5YiXPGltZyB3aWR0aD00MCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9GRi8yQy9yQkFDRkZOclBNNngwZVpnQUFBQmJjd0c3WTAwOTcucG5nIj4=
- 答案:Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数:
5.( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOazqOaEjzDnmoTkvY3nva7vvIzlgbbmlbDkvY3nva7nmoTmlbDlrZfkuLow77yM6KGo56S65Li6PGltZyB3aWR0aD01OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9GRi8yQy9yQkFDRkZOclBSbUQzcnQ5QUFBQjlYeWw0aWc1MjgucG5nIj4=
- 提示2:IOaVsOWtl+inhOW+izxpbWcgd2lkdGg9MjY1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzNCLzM3L3JCQUNFMU5yUFJtVGN3R2tBQUFDLUJQRXNHbzgwMi5wbmciPu+8jOesrG7pobnkuLoybi0x
- 答案:QQ==
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