单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Diane Darling is ______.

A．the author of the passage you have just beard
B．the founder of network
C．the guide of networking
D．the CEO of a Boston-based company

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单项选择题

单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Diane Darling is ______. 您的浏览器不支持 audio 元素。