题目

阅读与表达         The most valuable gift I have ever received was a photo album from my best friend Kevin.         Kevin and I were classmates for all six years of primary school. We both had the same interests, so we always had a lot of things to talk about. It is wonderful to have such a good friend.         However, last summer, Kevin had to move to another city because of his father's job. Then he gave me a photo album. It has photos of the memorable events we have experienced together. I've also written some notes under each photo, he said. I was deeply满足函数y=12x-1与y=-12x2的图象为（　　） A、B、C、D、