尘肺X线胸片上,圆形小阴影大小依据划分为p、q、r三级,如p级为A.15mm<B

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问题 尘肺X线胸片上,圆形小阴影大小依据划分为p、q、r三级,如p级为A.15mm<B≤30mmB.<15cmC.<15mmD.30mm≤D<10mmE.15mm≤C<30mm

选项 A.15mm<B≤30mm
B.<15cm
C.<15mm
D.30mm≤D<10mm
E.15mm≤C<30mm

答案 C

解析
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