單項選擇題
A.2%B.3%C.4%D.5%
A.80 B.100 C.130 D.150
A.1% B.2% C.3% D.4%
A.2~4mm B.4~6mm C.6~8mm D.8~10mm
A.100 B.150 C.200 D.250
判斷題