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【单选题】
渐开线齿廓的形状完全取决于____。A.
基圆半径
B.
齿数
C.
压力角
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【简答题】How did he solve the problem at last?
【单选题】热学中的熵增的后果与人口、环境、城市、能源方面的发展关系来说,下列哪一项说法错误
A.
地球上的煤和石油被挖掘，利用热机变为满足幸福生活的有用功，排出废热。会使得熵增加，带来能源危机。
B.
制造生活中的任何物品和设备都需要利用各种资源和能量，总体而言不可逆的熵增加过程。
C.
人生是一个不可逆过程，不断消耗资源，人口增长，熵也增长，带来人口危机。
D.
充分利用太阳能，水能，风能等可再生资源可使得熵减少，使得文明更好地延续。
【单选题】How did Alden solve the money problem?
A.
He sold his house and his cars.
B.
Factories could ship products before being paid.
C.
He borrowed money from a mortgage company.
D.
He borrowed money from his wife's family.
【简答题】Skim the Text 1 on "WeLearn", divide it into 3 parts and solve the following questions. Remember to submit your answer before 10:20. 1. Where do good ideas come from ? 2. How many examples or ways of ...
【单选题】热学中的熵增的后果与人口、环境、城市、能源方面的发展关系来说,下列哪一项说法错误
A.
地球上的煤和石油被挖掘，利用热机变为满足幸福生活的有用功，排出废热。会使得熵增加，带来能源危机。
B.
就整体而言，制造生活中的任何物品和设备都是不可逆的熵增加过程。
C.
人生是一个不可逆过程，不断消耗资源，人口增长，熵也增长，带来人口危机。
D.
充分利用太阳能，水能，风能等可再生资源可使得熵减少，使得文明更好地延续。
【单选题】热学中的熵增后果与人口、环境、城市、能源方面的发展关系来说,下列哪一项说法错误
A.
地球上的煤和石油被挖掘，利用热机变为满足幸福生活的有用功，排出废热，会使得熵增加，带来能源危机。
B.
制造生活中的任何物品和设备都是不可逆的熵增加过程。
C.
充分利用太阳能，水能，风能等可再生资源可使得熵减少，使得文明更好地延续。
D.
人生是一个不可逆过程，不断消耗资源，人口增长，熵也增长，带来人口危机。
【多选题】How did the manager solve the man’s complaint?
A.
He apologized firstly.
B.
They can repay the shirt the man bought from the shop.
C.
The man can choose five additional shirts which are the same price or less than the one he bought last time at no cost.
【简答题】He asked me," How did you solve the maths problem so quickly? ” ( 改为宾语从句 ) He asked me __________ __________ solved the maths problem so quickly .
【单选题】How did Clotfelter manage to solve the problem in the end?
A.
By seeking cooperation with heads of the school clubs and sports teams.
B.
By hiring some graduate students to carry out a poll in the schools.
C.
By cataloging the races from the pictures presented in the yearbooks.
D.
By getting the racial data from the National Center for Education Statistics.
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