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【简答题】
电压互感器主要用于（）
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【简答题】A．The rapid growth of the service sector of the world economy. B．The invention of the computer. C．The rapid growth of the world economy. D．The blurring of the line between the computer and other equip...
【单选题】What is the passage mainly about?
A.
The invention of the umbrella.
B.
The popularity of the umbrella.
C.
The history and use of the umbrella,
D.
The development of tile umbrella.
【简答题】长城与丝路代表的是对立的两种文化长城代表(),丝路代表外拓。
【简答题】长城与丝路代表的是对立的两种文化长城代表()丝路代表()
【简答题】断面具有“车轮纹”特征的是哪种药材 ( )A. 天花粉B. 防己C. 山药D. 白芷A. 1 B. 1 C. 1 D. 1
【单选题】What is the underlying significance of the invention of the Kodak?
A.
It marked the beginning of manufacturing small cameras.
B.
It met the need of photographers in America and Europe.
C.
It made picture-taking suddenly popular among ordinary people.
D.
It made the work of professionals more enjoyable.
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