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【单选题】
根据数据处理技术,面向不同的系统目标,主要归类为联机事务处理、联机分析处理和()。A.
数据锁定
B.
数据挖掘
C.
数据分析
D.
数据导出
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举一反三
【单选题】If you want to learn about the differences about people in the world, you______ .
A.
should know the ways to study other lands
B.
should know the four big reasons given in the passage
C.
may study the different types of clothing people wear
D.
may be surprised by the ways people wear hats
【简答题】A．You should try to talk with yourself. B．You should think about people that can help you. C．You should try to draw on a positive imagination. D．You should write down several positive sentences.
【单选题】下列有关细胞色素的叙述哪一项是正确的?
A.
各种细胞色素在呼吸链中排列顺序是 b→C→C1→aa 3 →O 2
B.
都是递电子体
C.
都是递氢体
D.
全部存在于线粒体基质中
【简答题】You should spend about 20 minutes on this task. You are unhappy about a plan to make your local airport bigger and increase the number of flights. You live near the airport. Write a letter to your loc...
【简答题】If your children are curious about their country, you should ______.
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