单项选择题

Questions 12 to 15 are based on the conversation you have just heard.

A．It"s the name of a language program.
B．It"s the name of a document.
C．It"s a kind of visa.
D．It"s the code name of a major at university.

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单项选择题

单项选择题

Questions 12 to 15 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。