题目内容
1.听第10段材料,回答第17至20题.17.How many lab sessions will the students have every week?
A.One.B.Two.C.Three.
18.What are the students allowed to wear in the lab?
A.Long scarves.B.Loose clothes.C.Tennis shoes.
19.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.
20.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.
分析 略
解答 ACAB
点评 略
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