题目

小明研究液体蒸发快慢是否与液体表面空气流速有关时，设计了如图实验，为了缩短实验时间，以下做法你认为不合理的是（ ） A . 将图中两水滴的面积同时增大 B . 将扇冷风改为用电吹风吹热风 C . 将图中两水滴升高相同的温度 D . 将图中两水滴减少相同的质量 答案：B阅读下面短文，把A--E五个句子填入文中空缺处，使短文内容完整、正确。1-5On the suburb(郊区) of a town in England, there lived an old man in a nice house with a large garden. 1.___________ He watered and fertilized(施肥) them.One day a young man went by the garden. He looked at the beautiful flowers, imaging how happy he could be if he lived in such a beautiful place. 2.______________ He was very surprised about this and asked, “You can’t see these flowers, why do you take notice of them every day?”The old man smiled and said, “I can tell you four reasons. First, I was a gardener since I was young, and I really like this job. Second, 3._________________ Third, I can smell the sweetness of them. As for the last one, that’s you.”“Me? But you don’t know me,” said the young man.“Yeah, it’s true that I don't know you. But I know that flowers are angles(天使) that everyone knows. 4.________________”The blind man’s work opened our eyes and pleased our hearts, which also made his life happier. It was just like Beethoven. 5.____________ Beethoven himself couldn’t hear his wonderful music, but his music has encouraged millions of people to face their difficulties bravely. Isn’t it one kind of happiness?A. He cared for his flowers all the time.B. I can touch them though I can’t see these flowers.C. Then, suddenly he found the old gardener was blind.D. We enjoy the happiness which these flowers have brought us.E. He couldn’t hear anything in his later life and wrote great musical works.