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关于X线滤过的叙述,错误的是

A、固有滤过一般用铝当量表示
B、固有滤过指X线机本身的滤过
C、采用铜铝复合滤过时,铝面朝向X线管
D、总滤过为固有滤过与附加滤过之和
E、将X线束中低能成分吸收掉称X线滤过
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正确答案:

C

答案解析:

暂无解析

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