单项选择题

Questions 11 to 14 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
What does the speaker mainly discuss

A．The diagnosis of asthma.
B．How to prevent an asthma attack.
C．What asthma is and what happens during an asthma attack.
D．The types of medicine available to an asthmati

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单项选择题

What does the Professor Jamison’s assistant do

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B．Do research in the library.
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单项选择题

What did Julia Margaret Cameron emphasize in her portraits

A．Her subject’s home.
B．Her subject’s social status.
C．Her subject’s personality.
D．Her subject’s role in history.

Questions 11 to 14 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. What does the speaker mainly discuss 您的浏览器不支持 audio 元素。

Questions 11 to 14 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
What does the speaker mainly discuss