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下列关于科学家与他们的重大发现的说法中正确的是                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           


  1. A.
    奥斯特
  2. B.
    欧姆
  3. C.
    法拉第
  4. D.
    沈括
A
试题分析:A、奥斯特最早发现电流的磁效应;
B、欧姆发现欧姆定律;
C.法拉第发现电磁感应;
D.沈括发现磁偏角。
A故选A。
考点:物理常识.
点评:解决此类问题需要掌握基本的物理学常识,平时应注意积累.
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