A.0.9~1mm B.约1mm C.2.5mm D.1~1.5mm E.0.5~0.8mm隙卡沟预备时,宽度为

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问题 A.0.9~1mm
B.约1mm
C.2.5mm
D.1~1.5mm
E.0.5~0.8mm

选项 隙卡沟预备时,宽度为

答案A

解析
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