问题 问答题 简答题

断路器与隔离开关的区别是什么?

答案

参考答案:

在外观上的区别是:断路器的动、静触头都是封闭在筒体内,而隔离开关的动、静触头都是外露的。在结构和功能上的区别是:断路器有灭弧机构,所以根据断路器容量和其他技术数据选择的断路器,可以直接带负荷接通或切断被它控制的电路,并可以选择适当的操作机构以实现自动操作和远方控制。隔离开关没有灭弧机构,它不能带负荷切、合电路。此外断路器没有明显的断开点,而隔离开关具有明显的断开点,它可以配合断路器使用。

完形填空

[1]Everyone makes mistakes. How do you react when a family member, friend, or a classmate makes a mistake? Some of us may shout out , complain, or punish. Unfortunately, these reactions to mistakes sometimes greatly hurt both sides. In fact, there is a better way to deal with a mistake.

[2]Reframe(重组) "MISTAKE": Change "MISTAKE" into "MIS-TAKE." Doesn’t that have a different feeling? Therefore, a mistake is not so bad as expected. We can learn from it and it is likely to lead to success in the end.

[3]Use mistakes as an opportunity for learning. Most of us want to hide our mistakes, but we may be more willing to share our "MIS-TAKES" and let others learn from them. Either an individual or a family can benefit by openly recognizing and correcting mistakes, rather than pretending that they didn’t happen. In fact, a mistake, if corrected quickly and in a creative way, can become         for learning.

[4]Think of mistakes as opportunities to prove yourself. A mistake becomes an opportunity to create a close friend or customer. For example, in business, studies show that one of the things all customers want is recovery when the organization has made a mistake. They want us to apologize sincerely. With creative thinking, we can make them satisfied with the way we deal with a mistake.

[5] We have learned to allow people around us to make mistakes. Now give them “protection” when they make a mistake. If you give people both permission and protection, you will get along well with them. Show them how they can turn a mistake into learning something about themselves so they don’t make the same mistake again.

1. What is the passage mainly about? (no more than 10 words)

                                                  

2. What does the underlined word “it” in Paragraph 2 probably refer to? (no more than 3 words)

                                                    

3.Fill in the blank in Paragraph 3 with proper words.(no more than 4 words)

                                                   

4. Complete the following statement with proper words.(no more than 3 words)

If we think creatively, we are able to make people feel pleased with the way in which a mistake is          .

5. Why should you show people how to turn a mistake into learning something about themselves? (no more than 12 words)

                                                     

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