配套习题- 等差数列及其通项公式 -【青果学院】

1/4单选题

难度：

1.等差数列：

的第

项是

A
B
C
D

正确答案：Qw==

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

2/4单选题

难度：

2.已知在等差数列

中，

则

A
B
C
D

正确答案：RA==

4oi1PGltZyB3aWR0aD0xMDkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOTAvMjgvckJBQ0ZGU2pteHp3aHhlZEFBQUNKQk9jM1p3Mjg1LnBuZyI+PGJyPuS7o+WFpeWFrOW8jzxpbWcgd2lkdGg9NjAgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOTAvMjgvckJBQ0ZGU2pteHl4OVh0QkFBQUNNaW5pZ25nNzA1LnBuZyI+77yM5b6XPGJyPjxpbWcgd2lkdGg9MTQ3IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJGLzFGL3JCQUNKbFNqbXh5RFQyNUFBQUFDODM4cHE0azA0MS5wbmciPi48YnI+4oi06YCJRDxicj48YnI+

3/4单选题

难度：

3.

已知等差数列中，,,则是该数列的第几项

A	198
B	199
C	200
D	201

正确答案：Qw==

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

4/4单选题

难度：

4.在等差数列

中，

，则

的值为

A
B	15
C
D	19

正确答案：Qw==

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