單項選擇題
A.2 B.3 C.4 D.5
A.100-200mm B.200-300mm C.200-500mm D.300-500mm
A.5mm B.10mm C.20mm D.25mm
A.10am B.20cm C.30am D.40cm
A.5-10cm B.10-20cm C.15—20cm D.20-25cm
A.5m B.10m C.15m D.20m
A.C15 B.C20 C.C25 D.C30
A.20cm B.30cm C.40cm D.50cm
A.200mm B.300mm C.400mm D.500mm
A.5 B.8 C.10 D.12
A.1m B.2m C.3m D.4m