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客专提速道岔ZYJ7日常维护中扳动道岔,在尖轨第一、第二牵引点间任意一处,尖轨与基本轨之间插入5mm厚、20mm宽的铁板,不得接通()或转辙机内的表示接点。
春秋时期,钟子期与俞伯牙“高山流水觅知音”的典故至今为人们所津津乐道,其中伯牙用于弹奏“高山流水”的乐器是( )。
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The main site is in Germany.
According to the passage, why are the public in eastern Germany especially furio...
Both France and Germany performed satisfactorily in the first half of the year.
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In France and Germany, the majority of the people are in favor of increased soci...
When did Nadia’s family move to England from Germany?
When did Nadia’s family move to England from Germany?