单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
More than 25 percent of all smokers in the world are______.

A．Russian
B．Chinese
C．American
D．Indian

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单项选择题

单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. More than 25 percent of all smokers in the world are______. 您的浏览器不支持 audio 元素。