题目

The story goes that some time ago, a man had a very lovely little daughter. One day the man punished his 3-year-old daughter for wasting a roll of gold wrapping paper. Money was tight and he became angry when the child tried to decorate a box to put under the Christmas tree. But the little girl brought the gift to her father the next morning and said, “This is for you, Daddy.” The man was embarrassed by his earlier act, but his anger broke out again when he found out the box was empty. He shouted at her, saying, “Don’t you know, when you give someone a present, there is supposed to be 如图所示，一个木块从斜面上滑下，并在水平面上继续滑动。若斜面和水平面的粗糙程度相同，则下列说法正确的是（　　）A. 木块在水平面上继续滑动是由于木块具有惯性B. 木块在斜面和水平面上受到的摩擦力大小相等C. 木块在斜面上滑下时越来越快受到的摩擦力越来越小D. 木块在水平面上滑动时越来越慢，受到的摩擦力越来越大