第3题
What is the relationship between the two speakers? 查看材料
A.Daughter and father.
B.Friends.
C.Couple.
第4题
A. Cause and effect.
B. Experiment and result.
C. Problem and solution.
D. Topic and comment.
第5题
A.Silicate rocks are largely composed of carbon dioxide.
B.Silicate rocks contribute to the creation of carbon dioxide.
C.The erosion of silicate rocks reduces carbon-dioxide levels in the atmosphere.
D.The formation of silicate rocks removes carbon dioxide from the oceans.
第7题
A.The relationship between overweight and health problems.
B.The cause of being overweight in Britain.
C.How to avoid getting overweight.
D.Britons" overweight problem.
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