单项选择题X 纠错
A.70% B.80% C.85% D.90%
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单项选择题
A.14 B.28 C.60 D.90
A.10% B.15% C.20% D.25%
A.2.5mm B.5mm C.10mm D.1.2mm
A.150mm B.160mm C.165mm D.170mm
A.5s~10s B.10s~15s C.15s~20s D.20s~25s
A.3min B.5min C.7min D.10min
A.2 B.3 C.4 D.5
A.175mm B.185mm C.190mm D.195mm
A.5 B.10 C.15 D.25
A.5mm B.10mm C.15mm D.20mm
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