单项选择题
A.0.7mm~0.9mm B.0.7mm~1mm C.0.8mm~0.9mm D.0.8mm~1mm
A.25~35 B.35~45 C.45~50 D.58~64
A.5.7~7.5mm B.5.7~8mm C.5.7~8.5mm D.5.7~9mm