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【单选题】
当竞争企业生产的产量达到以下哪一点时,它的利润最大?
A.
边际成本等于总收益
B.
边际收益等于平均收益
C.
边际成本等于边际收益
D.
价格等均可变成本
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【判断题】采用移相法测量电气设备介质损耗角正切值tanδ时,如果移相成功,试验电流与干扰电流同相位,则电源正反相测得的两个tanδ应相等。( )
A.
正确
B.
错误
【简答题】给小动物排排队. (1)按从大到小的顺序排列. 4.2,4.02,4.42,4.24,4.04; ______>______>______>______>______ (2)按从小到大的顺序排列. 5.01,0.51,0.15,1.05,1.50 ______<______<______<______<______.
【简答题】正电荷移动的方向为电流的 。
【判断题】互联网金融(备选)监管应提高行业自律。
A.
正确
B.
错误
【单选题】Which of the following best describes the grammatical error in this sentence “He found them where he least expected. On his head.”?
A.
Misplaced Modifiers
B.
Dangling Modifiers
C.
Run-on Sentences
D.
Fragments Without Verb
E.
Fragments Without Subjects
F.
Fragments Without Subjects and/ or Verbs
G.
Fragments of Dependent Clauses
H.
Pronoun Agreement Errors
I.
Pronoun Reference Problems
【判断题】采用移相法测量电气设备介质损耗角正切值tanδ时,如果移相不成功,试验电流与干扰电流不在同一相位,则必须重新进行移向操作。( )
A.
正确
B.
错误
【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. Peter Judd joined the army when he was 18, and for several months he was taught...
A.
In order to be a good soldier.
B.
In order to be good at shooting.
C.
In order to make friends.
D.
We don't know.
【单选题】碱中毒患者易出现手足抽搐的主要原因是
A.
血清Na + 减少
B.
血清游离Ca ++ 减少
C.
血清Cl — 减少
D.
血清K + 减少
E.
血清Mg ++ 减少
【单选题】医学伦理学的特征之一是
A.
灵活性
B.
实践性
C.
集体性
D.
组织性
【单选题】He left the book ____ where he had found it.
A.
lain
B.
lying
C.
laying
D.
lay
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