问题
填空题
根据离心风机的性能曲线，风机的（）与风机的转速成正比，风机的风压与转速的（）成正比，风机的功率与转速的（）次方成正比。
答案
参考答案：风量；平方；三
搜题请搜索小程序“爱下问搜题”
根据离心风机的性能曲线，风机的（）与风机的转速成正比，风机的风压与转速的（）成正比，风机的功率与转速的（）次方成正比。
参考答案：风量；平方；三
My name is Lily. My father is a teacher. His students love him a lot because he is funny. I love him, too, but I think he can be “foolish” 41 . Once we moved into a new house and had to go shopping to buy new chairs and lights. In the supermarket, I’m interested 42 some of the beautiful lights with good qualities and made my father buy them. When we got home, my father began to work out how much money we had 43 that day. Suddenly, he stopped. “Something’s wrong.” he said. “I’ve got 30 yuan 44 than I should!”“That’s great,” I said. “You can buy me that 45 book I want.” Father said nothing. Instead, he counted（数） how much money he had again and again. “The salesgirl must have made a mistake. We 46 go back to the shop,” he said. “Do you have to go back?” I asked. “Nobody will know we 47 too much change(找零). It would be foolish to go back.” “It wouldn’t be ‘foolish’.” my father said angrily. “It’s called being 48 .” At that moment, I looked into his eyes and knew he was right. The salesgirl was surprised to see us in the shop again. But 49 we gave her the money, she thanked us a lot. On my way home, my father stopped me 50 smiled. “Do you still want that cartoon book?” he asked. I looked at my “foolish” father and answered loudly, “Father, you are the greatest!”
|
