单项选择题
A.1.20~1.50NB.1.25~1.40NC.1.30~1.55ND.1.30~1.50N
A.0~4.5mmB.2~4.5mmC.2~4mmD.0~4mm
A.0.5NmB.1.5NmC.1NmD.2Nm