单项选择题

Questions 8 and 9 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions. Now listen to the news.
Who are NOT mentioned as people more likely to be exposed to lead

A．Automobile mechanics.
B．Painters.
C．Waiters.
D．Heavy equipment mechanics.

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Questions 8 and 9 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions. Now listen to the news. Who are NOT mentioned as people more likely to be exposed to lead 您的浏览器不支持 audio 元素。