我国自主生产的“吉利金刚”小轿车，发动机正常怠速为1200转/分钟，怠速指汽车不前进时发动机的转速．则对于怠速说法正确的是_刷题宝

题干

我国自主生产的“吉利金刚”小轿车，发动机正常怠速为1200转/分钟，怠速指汽车不前进时发动机的转速．则对于怠速说法正确的是（　　）

A：发动机1秒钟完成20个工作循环

B：发动机1分钟完成吸气冲程1200次

C：发动机1秒钟完成做功冲程10次

D：发动机1秒钟共完成80个冲程

上一题下一题 0.0难度选择题更新时间:2019-12-13 06:43:17

答案(点此获取答案解析）

C

同类题1

We want ______ cakes.

同类题2

池塘养鱼，若要稳定和持续地保持较高的鱼产量，应采取的最佳措施是（）

同类题3

I have a good friend at home. Her name is Mimi. She is white and yellow. She is very cute. I play with her when(当……的时候) I have time. She likes fish very much. When she is behind (在……之后) the sofa or in her box, you can’t see her. When I sit on the sofa, she sits with me. In the evening I do my homework at my desk, and she is on the desk. At that time I put her down(放下). Then she sits next to me. Is she a good friend of mine?

同类题4

同类题5

设函数f（x）=x³﹣6x+5，x∈R．

小学学科试题库

初中学科试题库

高中学科试题库