图中是甲乙两种不同电磁波的传播图像下列说法正确的是 A.甲乙两种电磁波的振动�率相同 b.甲电磁波振动的波长较长 c.甲电磁波的传播速度 Template




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tomski图中是甲乙两种不同电磁波的传播图像下列说法正确的是 a.甲乙两种电磁波的振动�率相同 b.甲电磁波振动的波长较长 coloring