Transcendentalists were strong ____in the power of the individual. They stressed the role of and ____and the individual's ____, and exalted feeling over ____.
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The representative writers of American Romanticism are ____, ____, ____etc.
The two monumental works of Transcendentalism are ____’s ____and ____’s ____.
凡大小和方向随时间做周期性变化的电流、电压和电动势____、____和____,统称交流电。而随时间按正弦规律变化的交流电称为____。
____、____和____是表征正弦交流电的三个重要物理量,通常把它们称为正弦交流电的三要素。