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【多选题】
进路建立分为几个过程,包含操作阶段,以及( )A.
选路阶段
B.
道岔转换阶段
C.
进路锁闭阶段
D.
开放信号阶段
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反馈参考答案：
举一反三
【简答题】________ is known to the world, Mark Twain is great American writer. A) That B) Which C) As D) It
【单选题】The second paragraph means that _______.
A.
only students from China study at the top universities
B.
no other students but Japanese and Chinese students study at the top universities
C.
Chinese students often fight against Japanese students
D.
famous universities in the United States attract more Chinese students
【单选题】( ) is known to the world, Mark Twain is a great American writer.
A.
That
B.
Which
C.
It
D.
As
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