问题
单项选择题
电力机车上所使用的保护电器主要有（）种。
A.2
B.3
C.4
D.5
答案
参考答案：D
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电力机车上所使用的保护电器主要有（）种。
A.2
B.3
C.4
D.5
参考答案：D
| 根据下面的对话内容，从方框内的选项 (A、B、C、D、E、或F) 中选出最佳选项。 | |
| Girl: Do you want to go to a movie, Edward? Boy: 1_______ Girl: What kind of movies do you like? Boy: Well, I like comedies because they're funny. And I think thrillers are great. Girl: 2_______ Boy: No, documentaries are boring. 3_______ Girl: I don't like documentaries, either. And I don't like thrillers-they're scary. Boy: 4_______ Girl: Well, I like action movies. Boy: 5_______ Girl: Uh-huh. They're exciting. And I like Beijing Opera, too. It's very interesting. My father and I like it a lot.
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