问题
单项选择题
双边供电条件下,相邻牵引变电所的接触网中间设置()。
A.分相绝缘器
B.区分绝缘器
C.分区亭
D.锚段关节
答案
参考答案:C
双边供电条件下,相邻牵引变电所的接触网中间设置()。
A.分相绝缘器
B.区分绝缘器
C.分区亭
D.锚段关节
参考答案:C
阅读短文,根据短文内容,从所给的六个选项中选出可以填入空白处的最佳逸项.使短文意思完整、连贯。(有两项为多余选项) ’ ![]() "I am happy that he is still alive," said Charles. "He is 67--no longer a young man—and everything is going up in flames. When he saw me, he shouted, " 小题3: " When Charles told him he didn’ t know, Edison said, “ Find her. 小题4: She will never see anything like this. " The next morning, Edison looked at the damage and said," There is great value in disaster (灾难). All our mistakes are burnt. We can start again. " Three weeks after the fire, Edison showed his first phonograph (留声机 ). To invent something, you need a good imagination and a lot of junk.
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