2008 National Question 4 Single-choice Differentiating 2008_退役省自主命题 (2008·文) 4.若 $0<x<y<1$ ,则 A. $3^{y}<3^{x}$B. $\log _{x} 3<\log _{y} 3$C. $\log _{4} x<\log _{4} y$D. $\left(\frac{1}{4}\right)^{x}<\left(\frac{1}{4}\right)^{y}$ Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →