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【多选题】
使用自动闭塞法行车时，列车进入闭塞分区的行车凭证为（ ）。A.
出站显示的允许运行的信号
B.
通过信号机显示的允许运行的信号
C.
进站信号机的显示
D.
调度命令
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
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【简答题】【改错题】IV. Correct errors in pronoun case. 下面的句子代词格式错误,请将其修改,并写出正确的句子。 Just between you and I, do you think there printer is working?
【简答题】用所给单词的适当形式填空. 1. Do you think there will be more pollution or__________ (little) pollution in 50 years? 2. I think Brazil_________( win) the World Cup year. 3. Jack__________( write) a letter to his p...
【单选题】-Do you think there will be more people in 100 years? -________ , I hope. [ ]
A.
No, there isn't
B.
No, there aren't
C.
No, there won't
D.
No, they won't
【简答题】已知一个交流电流,当 t =0时的值i 0 =1A,初相位为45°,则这个交流电的有效值 为 A 。
【单选题】Do you think there will be no paper books in the future? --____. Some people like paper books better than e-books.
A.
I agree
B.
I hope so
C.
I don't think so
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