單項選擇題
A.一 B.二 C.三
A.Ⅰ B.Ⅱ C.Ⅲ
A.57° B.60° C.63°
A.96° B.99° C.102°
A.0.1mm B.0.2mm C.0.3mm
A.0° B.90° C.180°
A.0° B.60° C.120°
A.±2mm B.±4mm C.±8mm
A.±10mm B.±4.47mm C.±2mm
A.1.3年 B.7.2月 C.15.4月
A.0.3mm B.0.3cm C.0.3m