单项选择题X 纠错
A.70% B.80% C.90% D.100%
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单项选择题
A.110 B.150 C.180 D.200
A.±30mm B.±50mm C.±100mm D.±200mm
A.±300mm B.±100mm C.±150mm D.±200mm
A.±1mm B.±1.5mm C.±2mm D.±2.5mm
A.2.5m B.3.5m C.4.5m D.5.5m
A.7000mm B.6000mm C.5000mm D.4000mm
A.250mm B.300mm C.350mm D.400mm
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