What are the speakers mainly discussing？A．A chemistry assignment.B． A study that their che
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What are the speakers mainly discussing？
A．A chemistry assignment.
B． A study that their chemistry professor did.
C．A class that the woman is taking.
D．A job possibility.
请帮忙给出正确答案和分析，谢谢！
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正确答案：D
主旨大意题。原文没有提及chemistry，因此A、B都可排除。他们其实是在讨论ProfessorSmith主持的另外一个试验给他们带来新的工作机遇的问题。对话中曾经出现了jobopening这样的词，和选项D贴近，所以它也是此题的理想答案。