单项选择题X 纠错
A.300PA B.350PA C.400PA D.450PA
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单项选择题
A.4公斤 B.5公斤 C.6公斤 D.7公斤
A.250-350KPA B.300-450KPA C.400-550KPA D.450-550KPA
A.5KPA B.10KPA C.15KPA D.20KPA
A.5KPA B.7.5KPA C.8KPA D.10KPA
A.30mm B.36mm C.40mm D.42mm
A.38mm B.39mm C.41mm D.42mm
A.15° B.20° C.30° D.40°
A.5mm B.10mm C.15mm D.20mm
A.16mm B.15mm C.10mm D.5mm
A.15° B.26° C.30° D.45°
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