κ/λ比率正常范围是 A.0.4~1.2 B.1.2~2.4 C.2.4~

昕玥2020-05-20  21

问题 κ/λ比率正常范围是A.0.4~1.2B.1.2~2.4C.2.4~5.0D.5.0~6.8E.6.8~11.2

选项

答案B

解析
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