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空心螺线管中通以稳恒电流I，环内磁感应强度为blobpng，当充满磁介质后，保持电流不变（忽略自感），磁感应强度为blobpng，则______。 (20)
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空心螺线管中通以稳恒电流I，环内磁感应强度为blobpng，当充满磁介质后，保持电流不变（忽略自感），磁感应强度为blobpng，则______。 (20)
A、blob.png
B、blob.png
C、blob.png
D、blob.png
时间：2021-09-08 14:13
关键词：
青书学堂
河北建筑工程学院
普通物理(高起本)
答案解析
D
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boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
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空心螺线管中通以稳恒电流I，环内磁感应强度为blobpng，当充满磁介质后，保持电流不变（忽略自感），磁感应强度为blobpng，则______。 (20)
I had no ______of who I was or what I was going to be.
（）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．
Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.
Masters are（）solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
Either he or I ______to the airport.
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