X线通过物质时强度减弱,其衰减符合()When X-rays travel through a materail, what is the law of its attenuation?()
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X线通过物质时强度减弱,其衰减符合()When X-rays travel through a materail, what is the law of its attenuation?()
A.线性衰减规律Linear decreasing
B.线性增长规律Linear increasing
C.指数增长规律Exponential incresing
D.指数衰减规律Exponential decresing
参考答案: