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【判断题】
精馏操作的依据是混合液中各组分的挥发度差异,实现精馏流操作的必要条件包括塔顶液相回流和塔底上升蒸气。A.
正确
B.
错误
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【单选题】What do you think would be the value of this ring, if I were to sell it?
A.
cost
B.
price
C.
significance
D.
importance
【单选题】What happened when the plane was nearing Carlisle?
A.
The pilot misread the signals from Ground Control.
B.
Ground Control failed to send out right instructions
C.
The pilot got a report of terrible weather.
D.
The engines broke down
【简答题】奥林匹亚为奥林匹克运动的发祥地，位于希腊首都雅典西南约300公里的地方。 （ ）
【单选题】International ______should be reduced between the two countries when this agreement is signed.
A.
pressure
B.
nervousness
C.
tension
D.
strain
【单选题】What is the main idea of the passage?
A.
What is the psychology?
B.
Who is Sigmund Freud?
C.
Sigmund Freud and his Psychology theory.
D.
Unconscious was the source of human will.
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