A. 1.5A B. 0.64A C. 2.5A D. 1.9AA

昕玥2019-12-17  3

问题

选项 A. 1.5A B. 0.64A C. 2.5A D. 1.9A

答案A

解析[img]/upload/tiku/37/5850245_1.jpg[/img]
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