题目

 There is _____ food left, would you please get some for me?  A. a few             B. few           C. a little               D. little 答案：D如图所示，当开关闭合后，滑动变阻器的滑片向右移动时（ ）A．示数变大，灯L变暗 B．示数变小，灯L变暗C．示数变大，灯L变亮 D．示数变小，灯L变亮