现象：当A进线911开关，B进线921开关都跳闸，母线900开关合闸。
参考答案：
表明上方两路电源都失电，不需要人为复位。
①911开关上方先来电，则该开关自动合闸，当921开关上方来电后，将SA转换开关置于“3”位置，合921开关（900开关自动跳闸），恢复分段运行。
②921开关上方来电，则该开关自动合闸，当911开关上方来电后，将SA转换开关投在“3”位置，合911开关（900开关自动跳闸），恢复分段运行。
从所给句子中选择恰当的句子完成下面的对话。（共5分，每小题1分）
A: Hi, can I help you? B: 小题1: My name is Amy. I want to work for your company. A: Nice to meet you, Amy. 小题2: B: No, I haven’t. But it’s the kind of job I’v always wanted to do. A: Really? 小题3: B: Yes, I think it would give me an opportunity to develop my abilities. A: 小题4: B: I worked in an ad company. A: 小题5: B: Because I had a few arguments with my boss and he often got angry with me. A: Oh, I see. I’ll talk with my manager about it and call you later. |