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【单选题】
对于均相封闭系统中的一定量的理想气体,有(1)对外做功,同时放热、(2)体积不变,而温度上升,并且是绝热过程,无非体积功。(3)恒压下绝热膨胀(4)恒温下绝热膨胀。则可能发生的过程是( )。
A.
(1)(4)
B.
(2)(3)
C.
(3)(4)
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【判断题】Acculturation is the process of becoming adapted to a new culture.()
A.
正确
B.
错误
【单选题】The new Russian holiday appears to demonstrate that Russia is ______.
A.
becoming less Communist.
B.
strongly enforcing a link between ideology and history.
C.
becoming opposed to the influence of western Christianity.
【单选题】These is a new type of advertisement becoming increasingly common in newspaper classified columns. It is sometimes placed among 'situations vacant', although it doesn't offer anyone job, and sometimes...
A.
informs job hunters of the opportunities available
B.
premises useful advice to those looking for employment
C.
divides available jobs into various types
D.
informs employer that people are available for work
【单选题】London is becoming a serious______to New York as the world's banking and financial services center.
A.
city
B.
rival
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employer
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opposition
【单选题】图示三杆结构,欲使杆3的内力减小,应该 。
A.
减小杆2的横截面积;
B.
减小杆1的横截面积;
C.
减小杆3的横截面积;
D.
增大杆3的横截面积。
【单选题】图示三杆结构,欲使杆3的内力减小,应该( )【图片】
A.
增大杆 3 的横截面积
B.
减小杆 3 的横截面积
C.
减小杆 1 的横截面积
D.
减小杆 2 的横截面积
【单选题】图示三杆结构,欲使杆3的内力减小,应该 。【图片】
A.
( A )增大杆 3 的横截面积;
B.
( B )减小杆 3 的横截面积;
C.
( C )减小杆 1 的横截面积;
D.
( D )减小杆 2 的横截面积。
【单选题】图示三杆结构,欲使杆3的内力减小,应该( )
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/f4ab85f481e8e8cf5b3bdfeb120d1cc6.jpg">
B.
增大杆3的横截面积;
C.
减小杆3的横截面积;
D.
减小杆1的横截面积;
E.
减小杆2的横截面积。
【单选题】图示三杆结构,欲使杆3 的内力减小,应该( )。【图片】
A.
减小杆3 的横截面积
B.
增大杆3 的横截面积
C.
减小杆1 的横截面积
D.
减小杆2 的横截面积
【单选题】图示三杆结构,欲使杆 3 的内力减小,应该( )
A.
增大杆 3 的横截面积
B.
减小杆 3 的横截面积
C.
减小杆 1 的横截面积
D.
减小杆 2 的横截面积
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