单项选择题

Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
What is the key to controlling the disease

A．Providing them with qualified doctors.
B．Keeping people away from sick people.
C．Keeping people away from sick chickens.
D．Providing them with sufficient medicines.

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单项选择题

Members of the club can enjoy privileges except______.

A．using all the equipment all the time
B．making their own video films
C．paying no membership fee
D．paying less for video tapes

单项选择题

What is the news item mainly about

A．The history of the early Mrican-American experience.
B．The rediscovery of the site of the burial ground of the Africans.
C．The first national memorial in the United States to address slavery.
D．The hardships of the earlier African-American experienc

Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. What is the key to controlling the disease 您的浏览器不支持 audio 元素。

Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
What is the key to controlling the disease