A.0.5~0.75mm B.0.25~0.5mm C.1~1.5mm D.2mm E.0.5mm 支托厚度一般为

admin2018-04-23  25

问题 A.0.5~0.75mm
B.0.25~0.5mm
C.1~1.5mm
D.2mm
E.0.5mm
支托厚度一般为

选项 A、 
B、 
C、 
D、 
E、 

答案C

解析
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