单项选择题X 纠错
A.100,1/2 B.120,2/3 C.150,1/3 D.180,1
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单项选择题
A.0.5mm B.0.75mm C.1mm D.2mm
A.105%,92% B.105%,95% C.105%,98% D.108%,92%
A.30 B.35 C.50 D.28
A.100N,20mm B.150N,30mm C.100N,30mm D.200N,30mm
A.1.4,0.6 B.1.8,0.35 C.1.5,.0.6 D.1.4,0.5
A.1 B.2 C.3 D.4
A.0.5 B.1 C.0.75 D.1.5
A.1.5 B.1 C.0.24 D.0.5
A.客梯 B.货梯或汽车梯 C.杂物梯
A.50mm B.1/2 C.500 D.1/3
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