單項選擇題
A.2~4m B.4~6m C.6~8m D.8~10m
A.0.2% B.0.4% C.0.1% D.0.3%
A.0.8mm B.1.0mm C.1.2mm D.1.5mm
A.0.6mm B.0.4mm C.0.5mm D.0.3mm
A.1h B.2h C.3h D.4h
A.4% B.5% C.6% D.7%
A.10d B.15d C.20d D.25d
A.60d B.70d C.80d D.90d
A.15d B.25d C.35d D.45d
A.2~3m B.3~4m C.4~5m D.5~6m