气门间隙过大，造成充气不足，排气不彻底，影响发动机的动力性和经济性。（） - 查题网

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成人高等教育 / 汽车概论

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气门间隙过大，造成充气不足，排气不彻底，影响发动机的动力性和经济性。（）

A、正确
B、错误

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汽车概论

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中国人民的抗日战争从1931年开始，到1945年结束，前后经历了14年的浴血奋战。在世界反法西斯战争的进程中，中国人民的抗日战争被称为“最早的抗争、最后的胜利”。中国人民抗日战争的伟大胜利，是A、中国人民的胜利、世界人民的胜利B、世界反法西斯战争胜利的重要组成部分C、近代以来中国人民第一次取得完全胜利的民族解放斗争D、中华民族从近代以来陷入深重危机走向伟大复兴的历史转折点中国近现代史纲要

( )是根据汽轮机的热应力或其它设定参数，指挥汽轮机控制系统完成汽轮机的启动.并网带负荷或停止运行的自动控制系统。A、DCS； B、ATC； C、DEH； D、MEH计算机控制系统

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如果模拟信号频谱的最高频率为，只要按照采样频率（）进行采样，那么采样信号就能唯一的复观。A、计算机控制系统

下列不属于行政处分的特点的是( )。A、行政处分是国家行政法律规范规定的责任形式B、行政处分是一种内部责任形式C、行政处分按严格的法定程序公开进行D、行政处分的主体是公务员所在行政机关上级主管部门或监察部门行政法与行政诉讼法

3、This story is about a young man. He worked very hard at his lessons. He was too busy to have a rest. At last, he couldn't go to sleep. Every night, when he went to bed, he closed his eyes and tried to sleep. But the more he tried, the more he stayed awake. After a while he decided to visit the doctor. “I just can't go to sleep at night. What should I do?” “I have a suggestion,” said the doctor. “Try counting numbers. By the time you reach one thousand, you'll be asleep. I am sure of it.” The next day the man reached the doctor's office. “Well,” said the doctor, “how are you today? Did you try my suggestion?” The man still looked tired. “Yes,” he said, “I tried counting one, two, three...up to one thousand. But when I reached five hundred and sixty-nine, I began to feel sleepy. I had to get up and drink some tea so that I could go on counting up to one thousand, but then I still couldn't fall asleep.”统考英语阅读理解