配套习题- 正负前缀型数列规律探究 -【青果学院】

1/5单选题

难度：

1.按数列的排列规律猜想数列

的第10项是（）

A
B
C
D

正确答案：Qw==

6Kej77ya54m554K577ya5YiG5a2Q5Li65YG25pWw77yM5YiG5q+N5Li65aWH5pWw77yM5aWH5pWw5Liq5Li65q2j77yM5YG25pWw5Liq5Li66LSf77yMPGJyPuaJgOS7pTxpbWcgd2lkdGg9MTUyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZGLzJDL3JCQUNGRk5yUE1YQ2FTWnlBQUFDcGlyQ1U1UTk0Ni5wbmciPg==

2/5单选题

难度：

2.找规律：

（）

A
B
C
D

正确答案：QQ==

6Kej77ya5pyJ5Lul5LiL54m554K5MS4g5byP5a2Q55qE56ym5Y+377ya5aWH5pWw5Liq5piv5q2j5Y+377yM5YG25pWw5Liq5piv6LSf5Y+3PGJyPjIuIOWIhuWtkOaYr+i/nue7reeahOWlh+aVsDxicj4zLiDliIbmr43lkI7ovrnnmoTmlbDnmoTliIbmr43mmK/liY3ovrnnmoTmlbDnmoTliIbmr43nmoQy5YCN5YePMS4g5o2u5q2k5Y2z5Y+v5Yik5patPGJyPjxpbWcgd2lkdGg9MTUyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZGLzJDL3JCQUNGRk5yUEw3aVJhSVNBQUFDVVl0RzR5QTkwOS5wbmciPg==

3/5单选题

难度：

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

正确答案：Qg==

6Kej77ya5qC55o2u6aKY5oSP77yM5pys5YiX5pWw5piv5YmN5LiA5Liq5pWw55qE57ud5a+55YC85YqgNOetieS6juWQjumdoueahOaVsOeahOe7neWvueWAvO+8jOespuWPt+aYr+ato+i0n+ebuOmXtOeahO+8jDI3KzQ9MzHvvIzlpYfmlbDkuKrml7bkuLrmraPvvIzlgbbmlbDkuKrml7bkuLrotJ8u5pWF5bqU5aGrLTMxLiA=

4/5单选题

难度：

4.−3，5，−7，9，−11，13，… 第𝑛项为（）

A
B
C
D

正确答案：Qw==

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

5/5单选题

难度：

5.

（）

A
B
C
D

正确答案：QQ==

6Kej77ya5rOo5oSPMOeahOS9jee9ru+8jOWBtuaVsOS9jee9rueahOaVsOWtl+S4ujDvvIzooajnpLrkuLo8aW1nIHdpZHRoPTU4IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0ZGLzJDL3JCQUNGRk5yUFJtRDNydDlBQUFCOVh5bDRpZzUyOC5wbmciPjxicj7mlbDlrZfop4Tlvos8aW1nIHdpZHRoPTI2NSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zQi8zNy9yQkFDRTFOclBSbVRjd0drQUFBQy1CUEVzR284MDIucG5nIj7vvIznrKxu6aG55Li6Mm4tMTxicj7mlYXnrKxu6aG55Li6PGltZyB3aWR0aD0xNTUgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0IvMzYvckJBQ0UxTnJQUm5BVHNqQkFBQUM3UmFfSGZRNjcxLnBuZyI+