1、单选题:The exam of IELTS is divided into 4 sections,which section is for reading? ( )选项:A:section 3B:section 2C:section 1D:section 4答案: 【section 2】
2、多选题:Which of the following st...
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 ...