【单选题】What is Bob going to do this weekend?
C.
To stay at home doing some washing.
【简答题】听对话,回答问题。 1. What is Bob reading? A. A letter B. A book C. A newspaper 2. Where will Bob study in the future? A. In England B. In China C. In America
【多选题】气体化学分析法所使用的仪器主要有( )。 A.奥氏气体分析仪
【单选题】What is Bob going to pay for?
【单选题】听力原文:What is Bob going to pay for? (7)
【简答题】( )是一组有固定数目和相同类型成分分量的有序集合。