單項選擇題
A.M3-M14 B.M3-M24 C.M3-M34 D.M3-M44
A.6" B.8" C.10" D.12"
A.20-30 B.30-50 C.50-60 D.60-70
A.20~30 B.40~50 C.50~60 D.60~70
問答題