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

A．Inadequate medical care.
B．Continuing social unrest.
C．Lack of food, water and shelter.
D．Rapid spreading of the epidemic.

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单项选择题

Questions 22 to 25 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。