【判断题】分度值为0.05mm的游标卡尺,其读数原理是尺身上20mm等于游标上19格的刻线宽度。
【单选题】以 20 等分游标卡尺为例,使用游标卡尺 测量零件时, 应先读整数,再读小数,看游标上的刻线,数出游标的第几条刻线 ( ) ,该数的 1/20=0.05mm 即为小数值。
【单选题】分度值为0.02mm的游标卡尺,当游标上的零刻线对齐尺身上20mm的刻线,游标上第50格刻线与 尺身上69mm的刻线对齐,此时读数值( )mm。
【单选题】Tom is a good boy. He's , too. [ ]
【单选题】He is such a good boy everyone likes.
【单选题】Peter is a good boy. He’s ,too.
【简答题】Xiao Ming is a middle school student. He is a good boy, and he studies very hard. But his family is very poor, because his mother got ill a few years ago, and his father has no job. He makes money by ...
【单选题】分度值为0.05mm的游标卡尺,游标刻线共20格,总长为()
【单选题】______ good boy he is! We have never seen such a good boy.