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【简答题】
当电压与电流取非关联参考方向时,理想电阻元件的电压与电流的关系式为_ __。
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举一反三
【简答题】A．The speculations of Thales. B．The forces of electricity, magnetism, land gravity. C．Aristotle's natural science. D．Galileo's discoveries.
【单选题】--- Do you mind telling us something about this area? --- Not at all. ________ of the land in this area _________ covered with trees and grass.
A.
Two fifth, is
B.
Two fifth, are
C.
Two fifths, is
D.
Two fifths, are
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