单项选择题

Questions 22～25 are based on the following conversation. What will the speakers probably do next

A．Write their lab reports.
B．Find out Professor Smith’s schedule.
C．Interview some high school students.
D．Finish their chemistry experiment.

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单项选择题

单项选择题

Questions 22～25 are based on the following conversation. What will the speakers probably do next 您的浏览器不支持 audio 元素。