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The electronic cards are the favorite with Web users with their advantages of being free in charge, being environmentally, friendly and being fast in delivery.
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Tom used to be very shy, but this time he was bold enough to give a performance in front of a large audience.
Part II. WritingDirections: Write an essay on the following topic. The topic has an outline you can followTopic: Learning English by Repetition1.Introduction:repetition: an effective method of learning English2. Reasons for repetition1)helpful to remember new words2)beneficial to our reading, listening and writing3.Conclusion
某对称三角形连接负载线电流为1.732A，则每相负载电流为（）
并联在某相负载两端的电压表，测得的电压是（）
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