1、判断题：
Numerical control is designed to control the operation of a machine tool by a series of coded instructions called a program.
选项：
A:错
B:对
答案: 【对】

2、判断题：
A part program is stored in the form of blocks of information, and each block has the numerical data needed to manufacture a segment of the work-piece.
选项：
A:对
B:错
答案: 【对】

3、判断题：
Like a conventional machine tool, the NC system can’t replace the manual actions of the operator either.
选项：
A:对
B:错
答案: 【错】

4、单选题：
数字模拟转换器的英语全称是
选项：
A:Central Processing Unit
B:Basic Revolution Unit
C:Digital Analog Converter
D:Analog Digital Converter
答案: 【Central Processing Unit】

5、单选题：
模拟数字转换器的英语缩写是________
选项：
A:APT
B:ADC
C:DDC
D:DDT
答案: 【ADC】