题目

It was the perfect friendship. We would run and play together; he was by my side everywhere I went. He always sensed when something was wrong, and was there to comfort me. Gambit was my best friend through my most difficult year in high school. And even though I could never have made it through that tough year without him, when it was over, I had to give him up. This very special friendship began when I joined 4H and became part of its Seeing Eye Puppy Project. I attended meetings and learned training techniques, but each month I found it harder to be there without a pup of my own and 20．说出下列百分率的意义，由这些数据你联想到了什么？（1）据调察，截止2013年底，某市网民普及率达75%．（2）到目前为止，某市农村自来水普及率达90%．（3）某市有线数字电视普及率为20%．