2017 Beijing Question 3 Single-choice Differentiating 2017_北京卷 (2017·理) 3.(5 分)执行如图所示的程序框图,输出的 S 值为 A. 2B. $\frac{3}{2}$C. $\frac{5}{3}$D. $\frac{8}{5}$ Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →