题目

听材料,回答问题。 (1) How many lab sessions will the students have every week? A . One. B . Two. C . Three. (2) What are the students allowed to wear in the lab? A . Long scarves. B . Loose clothes. C . Tennis shoes. (3) Why should the students avoid mixing liquid with paper? A . It may cause a fire. B . It may create waste. C . It may produce pollution. (4) What does the speaker mainly talk about? A . Grades the student will receive. B . Rules the students should follow. C . Experiments the students will do. 答案: A C A B
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