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【简答题】
某完全竞争市场中一个小企业的产品单价是640美元，其成本函数为TC=240Q-20Q 2 +Q 3 (正常利润包括在成本中)。 求①利润最大时的产量；②此产量的单位平均成本、总利润；
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【简答题】（5）哥特式教堂中，宗教情绪占着统治地位，但却逐渐受到_______强烈冲击。
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【简答题】Complete the sentences using will ('LL). Choose from the following: you/get you/like people/live it/look you/pass It's raing.Don't go out.___________ wet.
【单选题】若有int a[10]={0,1,2,3,4,5,6,7,8,9},*p=a;则输出结果不为5 的语句为()。
A.
printf("%d",*(a+5));
B.
printf("%d",p[5]);
C.
printf("%d",*(p+5));
D.
pri ntf("%d",*p[5]);
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【单选题】Which of the following gives a best summary of the article?
A.
All kinds of animals are playing an important role in our lives.
B.
Without domestic animals, we need to spend a lot of time in hunting.
C.
All animals are important because they provide us with food.
D.
All animals can be both fun and instructive to children.
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