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分类: 数学2 (军队文职)
发布时间: 2023-11-03 09:29
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A.对任意分段光滑闭曲线,有I=0
B.在L不包含原点时I=0,其中L是任意分段光滑闭曲线
C.
D.在L包含原点时I=0,不包含原点时,I≠0
正确答案是B
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