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【简答题】
某双原子理想气体1mol从始态 350K , 200KPa 经过如下五个不同过程达到各自 的平衡态,求各过程的功。 (1)恒温可逆膨胀到 50kPa ; (2)恒温反抗 50kPa 恒外压不可逆膨胀; (3)恒温向真空膨胀到 50kPa ; (4)绝热反抗 50kPa 恒外压不可逆膨胀。
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举一反三
【单选题】The meaning of the underlined word 'anonymity' (Para. 3) is closest to ______.
A.
being unknown
B.
being famous
C.
collective wisdom
D.
industriousness
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【单选题】Using newly obtained petroleum industry data, scientists have identified a previously unknown earthquake fault that lies under the heart of densely populated Los Angeles, California. Details were publ...
A.
it caused a severe local earthquake in the past.
B.
it pushes older rocks on the top of younger rocks.
C.
it has three segments and covers a relatively large area.
D.
it was hidden beneath California's largest city.
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【简答题】have been in London for two weeks. I don't speak English well at all. I have great difficulty in understanding people. In fact I don't catch a thing they say. I find their pronunciation is __21__ stra...
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【单选题】国际电工委员会(IEC)将电流信号（ ）和电压信号（ ）确定为过程控制系统中模拟信号的统一标准。
A.
0~20mA(DC);0~5V(DC)
B.
4~20mA(DC);0~5V(DC)
C.
4~20mA(DC);1~5V(DC)
D.
0~20mA(DC);0~10V(DC)
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【判断题】福建地区有着地方特色的深厚的茶文化底蕴,其中以闽南人的茶道和客家人的“擂(2声)茶”最见功夫。( )
A.
正确
B.
错误
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【单选题】Emily Dickinson was a nineteenth-century American woman who lived her life completely unknown to anyone except her family and a few friends. Less than a dozen of her poems were published during her li...
A.
Sappho.
B.
Emily Dickinson.
C.
Both Sappho and Emily Dickinson.
D.
Not mentioned in the passage.
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【简答题】Four individuals have responded to request by a blood band for blood do- nations. None of them has donated before, so their blood types are unkn- own. Suppose only type A+ is desired and only one of f...
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【判断题】在装配柱塞滑履组时，无须清洁其接触表面，可直接装入。若遇阻滞，可用榔头将其轻轻敲入即可。
A.
正确
B.
错误
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【判断题】在装配柱塞滑履组时,无须清洁其接触表面,可直接装入。若遇阻滞,可用榔头将其轻轻敲入即可
A.
正确
B.
错误
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【单选题】_____ help the people in the snowstorm in the south made him worried. [     ]
A.
Not known how to
B.
Unknown what to do to
C.
His knowing not how to
D.
His not knowing how to
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相关题目：
【单选题】The meaning of the underlined word 'anonymity' (Para. 3) is closest to ______.
A.
being unknown
B.
being famous
C.
collective wisdom
D.
industriousness
查看完整题目与答案
【单选题】Using newly obtained petroleum industry data, scientists have identified a previously unknown earthquake fault that lies under the heart of densely populated Los Angeles, California. Details were publ...
A.
it caused a severe local earthquake in the past.
B.
it pushes older rocks on the top of younger rocks.
C.
it has three segments and covers a relatively large area.
D.
it was hidden beneath California's largest city.
查看完整题目与答案
【简答题】have been in London for two weeks. I don't speak English well at all. I have great difficulty in understanding people. In fact I don't catch a thing they say. I find their pronunciation is __21__ stra...
查看完整题目与答案
【单选题】国际电工委员会(IEC)将电流信号（ ）和电压信号（ ）确定为过程控制系统中模拟信号的统一标准。
A.
0~20mA(DC);0~5V(DC)
B.
4~20mA(DC);0~5V(DC)
C.
4~20mA(DC);1~5V(DC)
D.
0~20mA(DC);0~10V(DC)
查看完整题目与答案
【判断题】福建地区有着地方特色的深厚的茶文化底蕴,其中以闽南人的茶道和客家人的“擂(2声)茶”最见功夫。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Emily Dickinson was a nineteenth-century American woman who lived her life completely unknown to anyone except her family and a few friends. Less than a dozen of her poems were published during her li...
A.
Sappho.
B.
Emily Dickinson.
C.
Both Sappho and Emily Dickinson.
D.
Not mentioned in the passage.
查看完整题目与答案
【简答题】Four individuals have responded to request by a blood band for blood do- nations. None of them has donated before, so their blood types are unkn- own. Suppose only type A+ is desired and only one of f...
查看完整题目与答案
【判断题】在装配柱塞滑履组时，无须清洁其接触表面，可直接装入。若遇阻滞，可用榔头将其轻轻敲入即可。
A.
正确
B.
错误
查看完整题目与答案
【判断题】在装配柱塞滑履组时,无须清洁其接触表面,可直接装入。若遇阻滞,可用榔头将其轻轻敲入即可
A.
正确
B.
错误
查看完整题目与答案
【单选题】_____ help the people in the snowstorm in the south made him worried. [     ]
A.
Not known how to
B.
Unknown what to do to
C.
His knowing not how to
D.
His not knowing how to
查看完整题目与答案