单项选择题X 纠错
A.65 B.70 C.75 D.80
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单项选择题
A.100 B.110 C.120 D.130
A.1 B.2 C.3 D.4
A.40° B.45° C.50° D.55°
A.3mm;2mm B.4mm;3mm C.5mm;4mm D.6mm;5mm
A.10%~15% B.20%~25% C.30%~35% D.40%~45%
A.10 B.15 C.20 D.25
A.150~250mm B.250~350mm C.50~150mm D.350~450mm
A.100mm(含100mm) B.200mm(含200mm) C.300mm(含300mm) D.400mm(含400mm)
A.110±5℃ B.120±5℃ C.90±5℃ D.105±5℃
A.1/2 B.1/5 C.1/4 D.1/3
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