单项选择题
A.0.3mmB.0.4mmC.0.5mmD.0.6mm
A.26B.26.2C.28D.28.2
A.(+0.025,0)B.(+0.030,0)C.(+0.046,0)D.(+0.072,0)
A.38B.39C.40D.42
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