可编程序控制器通过编程,灵活地改变其控制程序,相当于改变了继电器控制的( )线路。 发布时间:2017-12-02 14:23 │ 来源:www.tikuol.com 题型:单项选择题 问题: 可编程序控制器通过编程,灵活地改变其控制程序,相当于改变了继电器控制的( )线路。A.主、控制B.控制C.软接线D.硬接线
题型:单项选择题 Passage OneWhy is Thomas Jefferson mentioned in this passage a. As an example of interracial intimacy. b. Because he was a slave owner and was ply against interracial marriages. c. Because he was one of the early advocates of interracial marriages. d. Because he married a black woman. 查看答案
题型:单项选择题 业务管理人员在对工作底稿复核时,应将以下哪项确认为缺陷A.在工作底稿的备忘录中对业务的某一部分为何会超出时间预算作了解释。B.在工作底稿中记录了准备沟通的有关业务观察但遗漏了用于评价的标准。C.在工作底稿的备忘录中对为何省略业务工作方案的步骤作了解释。D.在业务客户的委托书中列出了工作底稿中记录的业务范围。 查看答案