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【简答题】
图所示为某塔板的负荷性能图, A 点为操作点。试根据该图 ( 1 ) 画操作线 ( 2 )确定塔板的气、液负荷; ( 3 )判断塔板的操作上、下限各为什么控制; ( 4 ) 计算塔板的操作弹性。
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【简答题】阅读理解。 Tom was not old, but he did not have much hair. His wife Grace had thick, beautiful, black hair. They had one daughter. Her name was Jane, and she was four and a half years old. There was a phot...
【简答题】Tom was not old, but he did not have much hair. His wife, Grace, had thick, beautiful, black hair. They had one daughter. Her name was Jane, and she was four and a half years old. There was a photo of...
【简答题】Costs have been ____by 30% in the past years.
【简答题】(名)宫阙,宫殿
【单选题】Although costs have been steadily since last October, we have not yet our prices.
A.
raising, risen
B.
risen, raising
C.
rising, raised
D.
raised, rising
【单选题】They had to ______ their way through a mist that was rapidly turning into a thick fog.
A.
converge
B.
grope
C.
strive
D.
grip
【单选题】He had a (thick) piece of bread for breakfast.
A.
厚的
B.
圆形的
C.
薄的
【判断题】沈阳故宫始建于1625年,裙名盛京宫阙,清入关后改称奉天行宫。( )
A.
正确
B.
错误
【单选题】糖酵解中与底物水平磷酸化有关的化合物是
A.
2- 磷酸甘油酸
B.
3- 磷酸甘油醛
C.
3- 磷酸甘油酸
D.
1,3- 二磷酸甘油酸
E.
6- 磷酸葡糖酸
【单选题】_______the thick clouds, you would find the kite in the sky easily.
A.
Had it not been for
B.
If it were not
C.
If it had not been for
D.
Were it not for
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