软衬材料的厚度,下列哪一项合适A.0.5~1.0mm B.0.2~0.5mm C.2.0~3.0mm D.1.0~2.0mm E.3.0~3.5mm

admin2020-12-24  26

问题 软衬材料的厚度,下列哪一项合适

选项 A.0.5~1.0mm
B.0.2~0.5mm
C.2.0~3.0mm
D.1.0~2.0mm
E.3.0~3.5mm

答案D

解析
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