薄片是指A.0.5mm以下B.1~2mmC.2~4mmD.3~5mmE.4~6m

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问题 薄片是指A.0.5mm以下
B.1~2mm
C.2~4mm
D.3~5mm
E.4~6mm

选项 A.0.5mm以下
B.1~2mm
C.2~4mm
D.3~5mm
E.4~6mm

答案 B

解析
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