单项选择题X 纠错
A.100mm B.200mm C.300mm D.400mm
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单项选择题
A.1m B.2m C.3m D.4m
A.30mmB.50mmC.100mmD.150mm
A.5%B.10%C.20%D.30%
A.2% B.1.5% C.1% D.0.5%
A.20N B.30N C.50N D.100N
A.5°B.10°C.20°D.30°
A.600m B.7000m C.800m D.900m
A.1m B.2m C.3m D.5m
A.50mm B.100mm C.150mm D.200mm
A.5mm B.10mm C.20mm D.30mm
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