- A)<img src="//img1.yqda.net/question-name/49/f48a64a7e2fc04381ddfa
- b9d883ea1.jpg" alt="" /> (B)<img sr
- c="//img1.yq
- da.net/question-name/60/b9d1c7afb38cf760977344344d7298.jpg" alt="" /> (C)<img src="//img1.yqda.net/question-name/5c/8c52db536edd656d6c5d707fa8b15a.jpg" alt="" /> (D)<img src="//img1.yqda.net/question-name/ff/d
- 5
-
已知等差数列{
- a<su
- b>n</sub>},a<sub>n</sub>+2=2an+1-3n+1,则第5项a5等于( ) (A)23 (B)20 (
- C)17 (
- D)14