【单选题】Vera: So why did you get so angry at Dean?
【单选题】- Why did you come here so late? - Sorry. I the bus.
【单选题】听力原文:Why did you leave our company so early yesterday? (A) Because you worked so late. (B) I am always the first person here. (C) I left to see the doctor. (11)
【简答题】分子中基本振动的数目称为 _______ ,又称分子的独立振动数,通过它可以了解分 子中可能存在的振动形式,以及可能出现的吸收峰数目。
【简答题】I: So, why did you ___ our company?