问题 问答题 简答题

梅兰日兰有哪些低压负荷开关?

答案

参考答案:

Multi 9系列的INT100负荷开关:32A100A;

NS100 1250NA型负荷开关:1001250A;

Masterpact负荷开关(不带保护单元):6306300A;

Interpact负荷开关:40630A。分三极、四极两种,规格有INS40、60、80、100、125、160、250、320、400、500、630A,附件有旋转手柄、辅助触点、电流表、电流互感器、机械联锁、联接端子等多种附件。可以组成手动电源转换系统。

请注意:原IN40~630(T)型负荷开关已经停产不再供货,被上述INS40~630负荷开关替代。

阅读理解

(B)

Now I'd like to talk to you about your final exam. The exam will be held next Thursday, the last day of the exam week. Remember to bring two of three pens in case you run out of ink. And unlike the mid-term exam, this test will not include multiple --- choice questions; it will consist entirely of essay. You'll have to answer three of the five essay questions. The exam will be comprehensive, which means you'll be responsible for all of the subject matters we covered in class this term, I would suggest you review your mid-term exam as well as textbooks and your class notes. The final exam will count as 50 percent of your grade of the course. The research project will count as 20 percent and the mid-term exam 30 percent. I'll be in my office almost all day next Tuesday. If you run into any problems, please drop in. Good luck to you and I'll see you on Tuesday.

59. . What will be included in the exam?

A. There will be only multiple-choice questions.

B. The exam will contain both multiple-choice and essay questions.

C. The exam will have an oral and a written section.

D. There will be only essay questions.

60.Why does the teacher call the exam comprehensive?

A. It will be easy to understand.

B. Students will be tested on all the material discussed in class.

C. It will cover topics from a wide variety of subjects.

D. Students must complete all parts of it.

61. When was this talk most likely given?

A. During the first week of class               B. During mid-term week

C. On the last day of class                     D. On the last day of exam week

单项选择题