单项选择题
A.0.01Sv/h B.0.1Sv/h C.1Sv/h D.10Sv/h
A.0.1Mev B.0.3Mev C.0.5Mev D.0.7Mev
A.几厘米 B.几分米 C.几米 D.几十米
A.0.01mSv B.0.4mSv C.1.6mSv D.4.8mSv
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