单项选择题X 纠错
A.18V B.36V C.22V D.49V
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单项选择题
A.5m B.20m C.15m D.10m
A.25~40m;1.5m B.10~20m;2.0m C.10~20m;1.5m D.25~40m;2.0m
A.300m B.400m C.500m D.600m
A.800mm B.700mm C.600mm D.500mm
A.700mm B.1500mm C.800mm D.2000mm
A.5m B.8m C.10m D.13m
A.10%~15%;5%~8% B.5%~8%;10%~15% C.15%~20%;18%~23% D.18%~23%;15%~20%
A.11% B.15% C.8% D.20%
A.0.8~1.1 B.0.7~1.1 C.1.2~1.3 D.1.5~1.7
A.0.5~1.4m3 B.1.5~3m3 C.3~5m3 D.>5m
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