题目

阅读下面材料, 根据其内容和所给段落开头语续写两段, 使之构成一篇完整的短文。One winter Sunday, my little sister, Colleen, and I builtthe greatest snowman ever.We gave him a carrot nose, beautiful hat, cozy scarfand gloves.He was a masterpiece(杰作). The next morning when looking outside, we smiled lovingly athim over our meal.We gave him a high­five(击掌) as we passed by onour way to school.A lot of kids went past our house, so he was the hot topic atour school that morning.It was our pride! The day dragged on until finally we could rush home.But asour yar用手水平的托着书，使它做下述各直线运动，手对书的作用力最大的情况是（　　）A.向下的匀加速运动B.向上的匀减速运动C.向左的匀速运动D.向右的匀减速运动