A.48h;60min B.72h;60min C.48h;30min D.72h;30min
A.10mm;50mm/min±5mm/min B.10mm;25mm/min±2mm/min C.20mm;50mm/min±5mm/min D.20mm;25mm/min±2mm/min
A.2點(diǎn);3點(diǎn) B.2點(diǎn);5點(diǎn) C.3點(diǎn);3點(diǎn) D.3點(diǎn);5點(diǎn)