2014 National Question 9 Single-choice Differentiating 2014_退役省自主命题 (2014·文) 9.若 $0<x_{1}<x_{2}<1$,则 A. $e^{x_{2}}-e^{x_{1}}>\ln x_{2}-\ln x_{1}$B. $e^{x_{2}}-e^{x_{1}}<\ln x_{2}-\ln x_{1}$C. $x_{2} e^{x_{1}}>x_{1} e^{x_{2}}$D. $x_{2} e^{x_{1}}<x_{1} e^{x_{2}}$ Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →