【单选题】直线度线值误差的评定方法有两种,当导轨呈 ( )时,两种方法评定的直线度误差值相同。
【单选题】对于本学期变频器课程和实训,目前为止我们没学过的频率给定方式是?
【判断题】直线定线在两点通视情况下,有目估定向和经纬仪定向两种方法。
【单选题】路线定线测量有直接定线和纸上定线两种方法,下面()适用于直接定线。
【单选题】企业客户管理作为一个获取、保持和增加可获利顾客的过程,其首要问题是( )
【单选题】According to the passage, ______ is the essence of self-plagiarism.
A.
the writer's pursuit for money or promotion
B.
the writer's laziness at his/her work
C.
the writer's deception on himself
D.
the writer's deception on the reader
【单选题】What is the writer's attitude towards Windows?
A.
The writer thinks it's time he quit using it.
B.
The writer thinks it is very good though it often breaks down.
C.
The writer dislikes it sometimes, but he can not live without it.
D.
The writer thinks highly of it.