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【简答题】
阅读计算题: 要求学生从下面的习题集及其解析中自由选择阅读44道带答案的计算题,并将题目与答案上传到这里。强调上传上来的内容自己必须理解,没有搞懂的题目不要上传这里。复制粘贴,手写,word或ppt等形式完成均可,工程经济学习题集及解析,见资料栏目。或这里的附件。 另外,从这66道题目中(22道计算题与这里的44道阅读题),选择一道题做成word,或ppt或更的视频形式,每位同学制作一道题的小作品,在15周末之前上传到这里。 工程经济学习题集及解析.pdf
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参考答案:
举一反三
【简答题】热机是把______能转化成______能的机器,______是最常见的热机.
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【单选题】Which of the following statements about labor unions can be concluded based on the information in the passage?
A.
Labor unions reached their peak of power in the 1986's.
B.
It took labor unions many years to improve conditions for workers.
C.
The early labor unions failed .because they were not concerned with the well-being of workers.
D.
The early labor unions failed because they could not agree on what they wanted to fight for.
查看完整题目与答案
【简答题】热机的分类:最早的热机是______;其次是______;______;______.
查看完整题目与答案
【单选题】下列关于热机的说法中,正确的是 [ ]
A.
热机排出的尾气没有内能
B.
热机的效率能达到100%
C.
热机都是使用汽油做燃料
D.
热机的大量使用会造成环境污染
查看完整题目与答案
【单选题】下列关于热机的效率,说法正确的是 [ ]
A.
热机做的有用功越多,热机效率就越高
B.
热机的功率越大,热机的效率就越高
C.
消耗燃料少的热机,效率高
D.
以上说法都不对
查看完整题目与答案
【简答题】热机是将内能转化成______能的机器;如图所示是热机的______冲程.
查看完整题目与答案
【单选题】甲、乙两台热机,甲的效率比乙的低,其含义是( )
A.
甲热机消耗的燃料多
B.
甲热机比乙热机做功少
C.
甲热机的功率比乙热机的小
D.
做相同的有用功,甲损失的能量比乙损失的多
查看完整题目与答案
【简答题】______是最早的热机.现代热机种类繁多,构造各异,有______、______、______、______.
查看完整题目与答案
【单选题】How can the users of terminals without processing capability acquire the necessary information?
A.
They can simply use a keyboard or a mouse.
B.
They should use a modem to maintain the host system.
C.
They should connect their computer to a satellite system.
D.
They can access its base through the programs on the system.
查看完整题目与答案
【单选题】关于热机的效率,下列说法中正确的是( )
A.
热机做的有用功越多,热机效率一定高
B.
热机的功率大,热机效率一定高
C.
热机单位时间内消耗的燃料少,热机效率一定高
D.
以上说法都不对
查看完整题目与答案
相关题目:
【简答题】热机是把______能转化成______能的机器,______是最常见的热机.
查看完整题目与答案
【单选题】Which of the following statements about labor unions can be concluded based on the information in the passage?
A.
Labor unions reached their peak of power in the 1986's.
B.
It took labor unions many years to improve conditions for workers.
C.
The early labor unions failed .because they were not concerned with the well-being of workers.
D.
The early labor unions failed because they could not agree on what they wanted to fight for.
查看完整题目与答案
【简答题】热机的分类:最早的热机是______;其次是______;______;______.
查看完整题目与答案
【单选题】下列关于热机的说法中,正确的是 [ ]
A.
热机排出的尾气没有内能
B.
热机的效率能达到100%
C.
热机都是使用汽油做燃料
D.
热机的大量使用会造成环境污染
查看完整题目与答案
【单选题】下列关于热机的效率,说法正确的是 [ ]
A.
热机做的有用功越多,热机效率就越高
B.
热机的功率越大,热机的效率就越高
C.
消耗燃料少的热机,效率高
D.
以上说法都不对
查看完整题目与答案
【简答题】热机是将内能转化成______能的机器;如图所示是热机的______冲程.
查看完整题目与答案
【单选题】甲、乙两台热机,甲的效率比乙的低,其含义是( )
A.
甲热机消耗的燃料多
B.
甲热机比乙热机做功少
C.
甲热机的功率比乙热机的小
D.
做相同的有用功,甲损失的能量比乙损失的多
查看完整题目与答案
【简答题】______是最早的热机.现代热机种类繁多,构造各异,有______、______、______、______.
查看完整题目与答案
【单选题】How can the users of terminals without processing capability acquire the necessary information?
A.
They can simply use a keyboard or a mouse.
B.
They should use a modem to maintain the host system.
C.
They should connect their computer to a satellite system.
D.
They can access its base through the programs on the system.
查看完整题目与答案
【单选题】关于热机的效率,下列说法中正确的是( )
A.
热机做的有用功越多,热机效率一定高
B.
热机的功率大,热机效率一定高
C.
热机单位时间内消耗的燃料少,热机效率一定高
D.
以上说法都不对
查看完整题目与答案
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