单项选择题
A.±0.01mmB.+0.01mmC.-0.01mmD.-0.02mm
A.2mmB.3mmC.5mmD.6mm
A.2倍B.2.5倍C.3倍D.4倍
A.0.10〜0.15mmB.0.15〜0.20mmC.0.20〜0.25mmD.0.25〜0.30mm
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