多个相同单元组成的系统中,若某个单元故障,系统就故障 ()
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从某种意义上讲,编组站是“货物列车的制造工厂”。 ()
“上钩的鱼”是指愚人节(le poisson d’avril) 。
III. Decide whether the following statements are true or false according to the text. 4. We can infer that the two men come from the same cultural and educational backgrounds.