单项选择题


Passage One
Questions 26 to 28 are based on the passage you have just heard.

A．To demonstrate an experiment.
B．To explain the grading procedures.
C．To inform the students of the safety measures.
D．To tell the students how to use the safety equipment.
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C。
单项选择题
A．Tell her what to study for the history test.B．Write a favorable letter of recommendation.C．Advise her about how to run an election campaign.D．Suggest a topic for a research paper.
A．Tell her what to study for the history test.
B．Write a favorable letter of recommendation.
C．Advise her about how to run an election campaign.
D．Suggest a topic for a research paper.
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