单项选择题

Questions 22 to 25 are based on the conversation you have just heard.

A．A chemistry experiment.
B．A class that the woman is taking.
C．A job possibility the woman expecting.
D．A study that their chemistry professor did.
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单项选择题
A．Giving a lecture.B．Discussing political science.C．Working on a science problem.D．Reading twentieth-century literature.
A．Giving a lecture.
B．Discussing political science.
C．Working on a science problem.
D．Reading twentieth-century literature.
单项选择题
A．He was very sad.B．He was very angry.C．He was very nervous.D．He was very happy.
A．He was very sad.
B．He was very angry.
C．He was very nervous.
D．He was very happy.
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