单项选择题
A.130mm B.140mm C.150mm D.160mm
A.200mm B.300mm C.400mm D.500mm
A.±20 mm B.±30 mm C.±40 mm D.±50 mm
A.-10～+50 mm B.-50～+100 mm C.-60～+150 mm D.-80～+200 mm
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