单项选择题

Questions 23 to 25 are based on the conversation you have just heard.
what do we know about Kahn’s factories according to the conversation

A．They were inefficient.
B．They had wooden frames.
C．They were spacious and airy.
D．They didn’t provide enough light.

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单项选择题

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Questions 23 to 25 are based on the conversation you have just heard. what do we know about Kahn’s factories according to the conversation 您的浏览器不支持 audio 元素。