A.2mmPb
B.1.5mmPb
C.1mmPb
D.0.5mmPb
E.3mmPb
[单选题]X线诊断机房主防护的铅当量应达到( )。A.2mmPbB.1.5mmPbC.1mmPbD.0.5mmPbE.3mmPb
[单选题]X线诊断机房主防护的铅当量应达到( )。A.2mmPbB.1.5mmPbC.1mmPbD.0.5mmPbE.3mmPb
[单选题]X线诊断机房主防护的铅当量应不小于A.2mm PbB.1.5mm PbC.1mm PbD.0.5mm PbE.0.1mm Pb
[单选题]X线诊断机房主防护的铅当量应不小于()A.2mm PbB.1.5mm PbC.1mm PbD.0.5mm PbE.0.1mm Pb
[单选题]X线诊断机房主防护的铅当量应不小于()A.2mmPbB.1.5mmPbC.1mmPbD.0.5mmPbE.0.1mmPb
[单选题]X线诊断机房的副防护应达到的铅当量是( )。A.0.1mmPbB.0.2mmPbC.0.5mmPbD.1.0mmPbE.2.0mmPb
[单选题]X线诊断机房的副防护应达到的铅当量是()A.0.1mmPbB.0.2mmPbC.0.5mmPbD.1.0mmPbE.2.0mmPb
[单选题]X线诊断机房的副防护应达到的铅当量是( )。A.0.1mmPbB.0.2mmPbC.0.5mmPbD.1.0mmPbE.2.0mmPb
[单选题]X线诊断机房的副防护应达到的铅当量是( )。A.0.1mmPbB.0.2mmPbC.0.5mmPbD.1.0mmPbE.2.0mmPb
[单选题]X线机机房墙壁主防护厚度应达到的铅当量是()A .1mmpbB .2mmpbC .3mmpbD .4mmpbE .5mmpb