2014 National Question 7 Single-choice Differentiating 2014_新课标II Paper 7.(5分)执行如图所示的程序框图,若输入的x,t均为2,则输出的$S=$() A. 4B. 5C. 6D. 7 Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →