发动机冷却系的作用是（）完成一个工作循环。A、对缸体冷却 B、对缸盖冷却 C、保湿 D、使 发布时间：2018-03-02 11:26 │ 来源：www.tikuol.com 题型：单项选择题 问题： 发动机冷却系的作用是（）完成一个工作循环。A、对缸体冷却B、对缸盖冷却C、保湿D、使发动机保持在一定的温度范围
题型：单项选择题 阅读理解。 One day Mozart, a great musician, saw an old man sitting in a street corner (角落) with a hat in front of him. The old man could see __1__ because he was blind (瞎的). He was playing the violin. It was a beautiful piece __2__ Mozart. But the hat was empty because no money was put into it. "Do you often __3__ Mozart's music?" Mozart asked. "Yes, sir," the old man answered. "Everyone knows Mozart and likes his music." " __4__ do you live with?" Mozart asked again."None," the old man said sadly. "I'm __5__ and I have to make a living by playing the violin." Mozart __6__ over the violin from the old man and he, himself, began to play. He played so well that all the people passing by stopped __7__ to the wonderful music and soon the man's hat was full of __8__. The old man was __9__ and asked Mozart, "Who are you, sir?" "I'm a poor __10__ like you," Mozart said.( )1. A. something ( )2. A. by ( )3. A. write ( )4. A. What ( )5. A. alone ( )6. A. looked ( )7. A. to listen( )8. A. food ( )9. A. interested ( )10. A. musicianB. nothing B. of B. read B. Which B. lonely B. got B. listening B. money B. worried B. singer C. everything C. for C. play C. Who C. lucky C. took C. to play C. paper C. surprised C. teacher 查看答案
题型：单项选择题 The young boy has a variety of hobbies, which ________ from classical music to online games.[ ]A．change B．varyC．extend D．range 查看答案