题目

Thinking of my good friends, I sense that my attitudes are totally different towards men and women. My earliest childhood friend is Donald. In the street was a (an) ___21___ old German truck. No wheels. No doors. Each day, ___22___ we were flying over the Atlantic in that truck our “airplane”，there came that wonderful moment: “Engine ___23___!” I’d shout, “We’ll have to jump out.” Glancing at me，he’d say, “I can’t ___24___!” “Fear not! I’ll drag you to the ___25___. And when we swam ___26___ the dust, Donald cried “Sharks!” But I always ___27___ him已知函数f（x）=loga（2x+b-1）（a＞0，a≠1）的图象如图所示，则a，b满足的关系是（ ）A．0＜a-1＜b＜1B．0＜b＜a-1＜1C．0＜b-1＜a＜1D．0＜a-1＜b-1＜1