A.電離室 B.正比計(jì)數(shù)器 C.蓋革-彌勒記數(shù)管 D.閃爍探測(cè)器
A.5rem B.15mSy C.50mSv D.5mSv
A.50mSv B.50rem C.150mSv D.500mSv