问题
问答题 简答题
在用电力机车牵引列车出段前，哪些电器和电路必须达到运用状态？
答案
参考答案：
电力机车的受电弓、牵引电机、辅助机组、高压电器与操纵机车有关的低压电器、蓄电池组和主、辅控制电路。
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在用电力机车牵引列车出段前，哪些电器和电路必须达到运用状态？
参考答案：
电力机车的受电弓、牵引电机、辅助机组、高压电器与操纵机车有关的低压电器、蓄电池组和主、辅控制电路。
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| Our English teacher was like a friend to us, and we all liked her. One day she came into the classroom and shouted, "Who did this?"She held up a piece of broken glass and asked, "Who 1 the window? " She seldom became angry. 2 this time she was. I broke the window. I had done 3 by throwing a baseball. I didn't want to admit (承认) it 4 I didn't have enough money to pay for a big window like that. "My father will be 6 , "I thought. At first I didn't 5 my hand, but later something strong in my heart suddenly made me stand up." I did it, "I said 7 . How difficult it was for me to say that! My teacher 8 a book from one of our book shelves and then began walking 9 my desk. I was afraid that she was going to punish (惩罚) me. "I know you like collecting 10 very much," she said, looking down at my 11 face. "Here is the book about collecting stamps that you are looking for. Now, the book is 12 and I shall not punish you. Remember, it's because you 13 the truth." I couldn't believe it! My teacher wasn't punishing me. I didn't 14 to pay for the broken window. And I got my favourite book! As time goes, the book is 15 ,so is my wonderful teacher. But I will never forget the lesson the teacher gave me that day. | ||||
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