题目

The rich man has decided to__________ everything he has to charity． A．set up           B．turn on           C．put off            D．give away 答案：D  考查动词短语。set up“建立”；turn on“打开”put off“推迟”；give away“赠送；捐赠”。根据句意可知选D。正比例函数y1=k1x与反比例函数y2=k2x(x≠0)在同一平面直角坐标系中的图象如图所示，则当y1＞y2时x的取值范围是 ．