E型热电偶的电极材料是()。A、正极镍铬、负极铜镍; B、正极镍铬、负极镍硅; C、 发布时间:2017-07-20 18:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: E型热电偶的电极材料是()。A、正极镍铬、负极铜镍;B、正极镍铬、负极镍硅;C、正极铁、负极铜镍;D、正极镍铬硅、负极镍硅。
题型:单项选择题 Which of the following is NOT an example of event risk()A. An interim South American government imposes restrictions on the outflow of capital.B. The U. S. Food and Drug Administration (FDA) determines that a biotech company’s flagship product is harmful to consumers and cannot be marketed.C. A corporation calls a large bond issue. 查看答案