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【简答题】
若将7个数按照从小到大的顺序排成一列，中间的数恰是这7个数的平均数，前4个数的平均数是25，后4个数的平均数是35，则这7个数的和为______．
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反馈参考答案：
举一反三
【多选题】马克思主义指出，改革和革命是人类社会发展的重要动力，其不同之处在于
A.
改革属于社会形态的量变，革命属于社会形态的质变
B.
改革不解决社会基本矛盾，革命解决社会基本矛盾
C.
改革维护现有的国家政权，革命的根本问题是国家政权问题
D.
改革适用于解决社会体制问题，革命适用于解决社会基本制度问题
【单选题】Now suppose Zara chooses local pricing by setting different prices between Spain and China. Uniqlo switches from local pricing to uniform pricing. Which of the following statement is TRUE?
A.
The competition between Zara and Uniqlo becomes more intensified if the Chinese market is very large (a>3/2)
B.
The competition between Zara and Uniqlo becomes less intensified if the Chinese market is very large (a>3/2)
C.
The competition between Zara and Uniqlo becomes more intensified if the Chinese market is relatively small (a<3/2)
D.
None of the above
【单选题】Suppose that Chloe opens a dog grooming business in a local shopping center. Which of the following would be an example of a factor of production used by Chloe? (i) her employees’time (ii) brushes, co...
A.
(i), (ii), and (iii) only
B.
(i) and (ii) only
C.
(i) only
D.
(i), (ii), (iii), and (iv)
【多选题】Suppose you are planning to travel with your friends, you are concerned about the local weather.下列哪些句型适用于此情境?
A.
It looks like the rain never stops.
B.
It is a hot day with a high of 38 degrees.
C.
How do you do?
D.
what's the souvenir in local?
【简答题】细菌的S-R变异是指细菌从___到___的变异。
【简答题】卵母细胞在发育过程中与（）细胞结合形成滤泡。
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