单项选择题X 纠错
A.10%~15% B.20%~25% C.30%~35% D.40%~45%
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单项选择题
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
A.3°~5° B.1°~3° C.5°~7° D.7°~9°
A.10%~30% B.30%~50% C.50%~70% D.70%~90%
A.0.3~0.4 B.0.1~0.2 C.0.2~0.3 D.0.4~0.5
A.10 B.30 C.15 D.20
A.20% B.30% C.40% D.50%
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